CVE-2026-87902 is a critical unauthenticated remote code execution vulnerability in WordPress versions 4.7.0 through 7.1.1. It allows attackers to include arbitrary PHP files outside the active theme directories, potentially leading to code execution. The flaw was patched in WordPress 7.1.2 and backported to supported branches down to 4.7. Exploitation attempts began shortly after the patch release, with attackers writing malicious PHP files to disk to execute shell commands. Immediate updating to version 7.1.2 or later is strongly advised.
Click2Shell is a cross-site request forgery (CSRF) vulnerability in WordPress Core up to version 7.1.0 that allows unauthenticated attackers to execute arbitrary PHP code on the server by forcing the installation of a theme from the official WordPress.org catalog. The attack requires a logged-in administrator to visit a crafted URL, which triggers the execution of PHP code via an inactive theme during a Customizer preview. This vulnerability was fixed in WordPress version 7.1.1 by escaping the theme slug and restricting jQuery selectors. The flaw enables remote code execution that could lead to file manipulation, data access, and creation of rogue admin accounts.
Hackers are actively exploiting a critical vulnerability in the WooCommerce Wholesale Lead Capture premium plugin for WordPress to upload a PHP backdoor. [...]
CVE-2026-80428 is a critical unauthenticated PHP Object Injection vulnerability in ILIAS software versions prior to 9.22, between 10.0 and 10.10, and between 11.0 and 11.3. The flaw involves the Shibboleth integration and allows remote code execution (RCE) without authentication.
A Linux rootkit has been identified targeting F5 BIG-IP APM devices. This rootkit intercepts PHP file loading processes and injects a fileless web shell directly into memory, which allows it to avoid writing malicious code to disk. This technique complicates detection and forensic analysis. The rootkit specifically affects F5 BIG-IP APM environments and leverages in-memory injection to maintain persistence and stealth.
A Server-Side Request Forgery (SSRF) vulnerability exists in the ONLYOFFICE ownCloud Integration plugin version 9.12. The /apps/onlyoffice/ajax/settings/address endpoint does not sufficiently validate the user-supplied Document Server URL before initiating outbound connections. An authenticated administrator can manipulate the document server parameter to cause the ownCloud server to send arbitrary requests to attacker-controlled destinations, including localhost and internal network hosts. This allows internal network reconnaissance and TCP port scanning based on differences in server responses.
A critical vulnerability chain in the Avada WordPress theme allows an unauthenticated attacker to execute arbitrary PHP code on the server without any user interaction (zero-click). This flaw affects the popular Avada theme and poses a severe risk of remote code execution.
The Kaltura HTML5 Player Library (mwEmbed / html5lib) versions v2.45, v2.103, and earlier v2.x releases contain two vulnerabilities involving insecure deserialization. These flaws allow remote, unauthenticated attackers to read arbitrary local files and execute arbitrary code as the web-server user via the vulnerable mwEmbedLoader.php endpoint. The vulnerabilities stem from unsafe deserialization of user-controlled input and insufficient sanitization of a path parameter, enabling directory traversal and remote code execution. These issues affect legacy Player V2 versions but not the currently supported Player V7. Until patches are applied, restricting or disabling access to the vulnerable endpoint is advised.
StopAndProtect is a large-scale malware operation abusing thousands of hacked WordPress sites as infrastructure to spread malware, control infected machines, and store stolen data. It uses a multi-stage infection chain initiated by a social engineering ClickFix prompt leading to PowerShell scripts and .NET loaders. The operation includes ransomware, data theft, screen locking, credential stealing, and a chat utility. Operational security failures exposed extensive logs, screenshots, and source code, revealing the scale and tools used. Many compromised WordPress sites are outdated and vulnerable, facilitating the attackers' control. The campaign affects victims globally, with many IPs from the US, Russia, and India. No official patch or fix is applicable as this is a malware campaign leveraging vulnerable third-party sites.
phpSysInfo is a customizable PHP script that displays system information. Prior to 3.4.6, the PSI_ALLOWED access-control check in read_config.php trusts attacker-controlled X-Forwarded-For and Client-IP HTTP headers before REMOTE_ADDR. A remote unauthenticated attacker can supply an allowed address in one of these headers to impersonate a trusted client and access exposed hostname, kernel, CPU, memory, filesystem, and network-interface information. This issue is fixed in version 3.4.6.
OpenCart version 4.2.0.0 contains a directory traversal vulnerability in its extension installer. The installer extracts uploaded .zip extension files without validating that extracted paths remain within the intended directory. This allows an attacker who can upload a malicious extension to write files outside the intended directory, such as placing a PHP web shell in the webroot. Exploitation requires valid administrator credentials to install the malicious extension. No patch is currently available, and users are advised to avoid installing untrusted extensions and to run OpenCart with minimal privileges.
A critical vulnerability in the vBulletin forum software allows unauthenticated attackers to execute arbitrary PHP code through template rendering. [...]
An unauthenticated attacker can chain two WordPress Core vulnerabilities, CVE-2026-63030 and CVE-2026-60137, to achieve remote code execution against affected WordPress installations. Multiple security firms have confirmed active in-the-wild exploitation within days of public disclosure, and public proof-of-concept exploits are circulating. Key takeaways: Two WordPress Core vulnerabilities, CVE-2026-63030 and CVE-2026-60137, can be chained together to achieve pre-authentication remote code execution against WordPress 6.9.x and 7.0.x installations. Multiple security firms have confirmed in-the-wild exploitation, with public proof-of-concept exploits appearing within hours of the July 17, 2026 disclosure. Patches are available in WordPress 7.0.2 and 6.9.5; WordPress.org has enabled forced automatic updates across affected supported installations. Background Tenable's Research Special Operations (RSO) team has compiled this blog to answer Frequently Asked Questions (FAQ) regarding wp2shell, two vulnerabilities in WordPress Core that can be chained together to achieve pre-authentication remote code execution. FAQ What is wp2shell? wp2shell is the name given to two vulnerabilities in WordPress Core. When was wp2shell first disclosed? On July 17, 2026, WordPress released security updates addressing the wp2shell vulnerabilities alongside two GitHub Security Advisories. Adam Kues of Searchlight Cyber, who discovered and disclosed CVE-2026-63030, published research on the same day and chose to hold back the technical specifics given the severity of the finding. Searchlight Cyber also launched wp2shell.com , a testing tool that allows administrators to check whether their WordPress installation is vulnerable. On July 20, Searchlight Cyber published a full technical breakdown of the attack chain. What are the vulnerabilities associated with wp2shell? wp2shell is a two-vulnerability exploit chain affecting WordPress Core. CVE Description CVSSv3 CVE-2026-63030 WordPress Core REST API Batch-Route Confusion Remote Code Execution Vulnerability 9.8 CVE-2026-60137 WordPress Core WP_Query author__not_in SQL Injection Vulnerability 5.9 CVE-2026-63030 is a REST API batch-route confusion weakness introduced in WordPress 6.9. CVE-2026-60137 is a SQL injection flaw in the author__not_in parameter of WP_Query , present in WordPress 6.8 and later. When chained on WordPress 6.9.0 through 7.0.1, the two flaws allow an unauthenticated attacker to reach the REST API batch endpoint at /wp-json/batch/v1 and achieve remote code execution. CVE-2026-60137 was discovered and disclosed by security researchers TF1T, dtro, and haongo. CVE-2026-60137 also affects WordPress 6.8.0 through 6.8.5 as a standalone SQL injection issue. Because CVE-2026-63030 was introduced in WordPress 6.9, the full RCE chain is only achievable on 6.9.x and 7.0.x installations. How severe is the wp2shell vulnerability chain? An anonymous, unauthenticated user can execute the chain against a default WordPress installation with no plugins required. No preconditions exist beyond the default WordPress configuration. Cloudflare notes that the vulnerable code path is reached when “a persistent object cache is not in use.” Note: wp2shell targets WordPress Core itself rather than a plugin or theme. All four prior WordPress-related entries in the CISA Known Exploited Vulnerabilities (KEV) catalog involve plugins, not core. Pre-authentication remote code execution in WordPress Core is uncommon. CVE Product Added to KEV Ransomware CVE-2026-41940 WebPros cPanel & WHM and WP2 (WordPress Squared) April 30, 2026 Known CVE-2020-25213 WordPress File Manager Plugin November 3, 2021 Unknown CVE-2020-11738 WordPress Snap Creek Duplicator Plugin November 3, 2021 Unknown CVE-2019-9978 WordPress Social Warfare Plugin November 3, 2021 Unknown How widespread are the attacks exploiting wp2shell? WordPress is the most widely deployed content management system in the world. Some hosted installations will receive patc…
The flaws allow attackers to execute arbitrary PHP code and gain root privileges on shared hosting servers. The post Joomla, LiteSpeed Vulnerabilities Exploited in Attacks appeared first on SecurityWeek .
A 10-year-old authentication bypass vulnerability discovered in the phpBB forum software allows an attacker to log in as any user, including administrators. [...]
A flaw in the Full Page Cache Warmer extension can be exploited without authentication via serialized PHP object payloads. The post Mirasvit Vulnerability Exploited to Execute Code on Magento Servers appeared first on SecurityWeek .