CVE-2026-90564: Cross Site Scripting in quequnlong shiyi-blog
CVE-2026-90564 is a cross-site scripting (XSS) vulnerability in quequnlong shiyi-blog versions 1.0.0 through 1.2.1. It affects the SysChatMsgMapper.getChatMsgList function in the chat sendMsg endpoint, allowing remote attackers to manipulate the chat_msg argument to execute XSS attacks. The issue was reported early to the project but remains unaddressed.
AI Analysis
Technical Summary
This vulnerability exists in quequnlong shiyi-blog versions 1.0.0 to 1.2.1 within the SysChatMsgMapper.getChatMsgList function of the chat sendMsg endpoint. Improper sanitization or validation of the chat_msg parameter allows an attacker to inject malicious scripts, leading to cross-site scripting. The flaw can be exploited remotely without authentication. The project has been notified but has not issued a response or patch.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, defacement, or other client-side attacks. The CVSS 5.1 (medium) score reflects the moderate impact due to required user interaction and limited privileges needed.
Mitigation Recommendations
No official fix or patch is currently available. Users should monitor the vendor's communications for updates. Until a patch is released, consider applying input validation or sanitization at the application level as a temporary mitigation. Avoid interacting with untrusted chat messages to reduce risk.
CVE-2026-90564: Cross Site Scripting in quequnlong shiyi-blog
Description
CVE-2026-90564 is a cross-site scripting (XSS) vulnerability in quequnlong shiyi-blog versions 1.0.0 through 1.2.1. It affects the SysChatMsgMapper.getChatMsgList function in the chat sendMsg endpoint, allowing remote attackers to manipulate the chat_msg argument to execute XSS attacks. The issue was reported early to the project but remains unaddressed.
CVSS v4.0
Score 5.1medium
Affected software
quequnlong
shiyi-blog
pkg:github/quequnlong/shiyi-blogcpe:2.3:a:quequnlong:shiyi-blog:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in quequnlong shiyi-blog versions 1.0.0 to 1.2.1 within the SysChatMsgMapper.getChatMsgList function of the chat sendMsg endpoint. Improper sanitization or validation of the chat_msg parameter allows an attacker to inject malicious scripts, leading to cross-site scripting. The flaw can be exploited remotely without authentication. The project has been notified but has not issued a response or patch.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, defacement, or other client-side attacks. The CVSS 5.1 (medium) score reflects the moderate impact due to required user interaction and limited privileges needed.
Mitigation Recommendations
No official fix or patch is currently available. Users should monitor the vendor's communications for updates. Until a patch is released, consider applying input validation or sanitization at the application level as a temporary mitigation. Avoid interacting with untrusted chat messages to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-12T15:48:07.537Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa6c1ff55bf5e2cf5c5b4bb
Added to database: 09/13/2026, 15:32:15 UTC
Last enriched: 09/13/2026, 15:46:28 UTC
Last updated: 09/13/2026, 16:37:37 UTC
Views: 6
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