CVE-2025-27298: WP Video Posts CSRF Vulnerability

CVE-2025-27298 Overview

CVE-2025-27298 is a Cross-Site Request Forgery (CSRF) vulnerability in the WP Video Posts WordPress plugin developed by cmstactics. This vulnerability chain allows attackers to leverage CSRF to achieve OS Command Injection, potentially leading to Remote Code Execution (RCE) on affected WordPress installations. The vulnerability affects all versions of WP Video Posts through version 3.5.1.

Critical Impact

This CSRF-to-RCE vulnerability chain allows unauthenticated attackers to execute arbitrary system commands on the underlying server by tricking authenticated administrators into clicking malicious links or visiting attacker-controlled pages.

Affected Products

• WP Video Posts WordPress Plugin versions up to and including 3.5.1
• WordPress installations running vulnerable versions of WP Video Posts
• Web servers hosting affected WordPress sites

Discovery Timeline

• 2025-02-24 - CVE-2025-27298 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-27298

Vulnerability Analysis

This vulnerability represents a dangerous attack chain combining two vulnerability classes: Cross-Site Request Forgery (CSRF) and OS Command Injection. The WP Video Posts plugin fails to implement proper CSRF token validation on sensitive administrative functions, allowing attackers to craft malicious requests that administrators unknowingly execute when visiting attacker-controlled web pages.

The lack of CSRF protection becomes particularly dangerous because the affected functionality appears to process user-supplied input in a way that allows injection of operating system commands. When an authenticated administrator triggers the forged request, the injected commands execute with the privileges of the web server process.

Root Cause

The root cause is twofold: First, the plugin lacks proper nonce verification (WordPress's CSRF protection mechanism) on one or more administrative endpoints. Second, the same endpoints fail to properly sanitize user input before passing it to system command execution functions. This combination of missing security controls creates a direct path from a simple social engineering attack to full server compromise.

The vulnerability is classified under CWE-352 (Cross-Site Request Forgery), though the ultimate impact extends to command injection due to the chained nature of the exploit.

Attack Vector

The attack requires an authenticated WordPress administrator to be tricked into visiting a malicious page or clicking a crafted link while logged into their WordPress dashboard. The attacker's page contains a hidden form or JavaScript that automatically submits a request to the vulnerable WP Video Posts endpoint, including malicious OS commands in the request parameters.

Since the plugin doesn't validate that the request originated from a legitimate WordPress admin page, and doesn't sanitize the injected content, the commands execute on the server. This could allow attackers to create backdoors, steal database credentials, install malware, or completely compromise the hosting environment.

For detailed technical information about this vulnerability, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2025-27298

Indicators of Compromise

• Unexpected outbound network connections from the web server process
• Unusual child processes spawned by PHP or the web server (Apache/Nginx)
• Newly created files in WordPress directories, especially PHP files with obfuscated content
• Web server access logs showing requests to WP Video Posts endpoints with suspicious URL-encoded parameters containing shell metacharacters

Detection Strategies

• Monitor web application firewall (WAF) logs for requests containing OS command injection patterns (;, |, &&, backticks, $()) targeting WP Video Posts plugin endpoints
• Implement file integrity monitoring on the WordPress installation to detect unauthorized changes
• Review web server access logs for POST requests to WP Video Posts plugin files from external referrers
• Deploy endpoint detection and response (EDR) solutions to identify anomalous process execution patterns

Monitoring Recommendations

• Enable verbose logging for WordPress plugin activities and monitor for unusual administrative actions
• Configure alerts for any shell command execution originating from the web server user account
• Set up network monitoring to detect command-and-control communications that may follow successful exploitation
• Implement real-time WordPress security scanning to detect plugin vulnerabilities

How to Mitigate CVE-2025-27298

Immediate Actions Required

• Immediately deactivate and remove the WP Video Posts plugin from all WordPress installations until a patched version is available
• Audit WordPress installations for signs of compromise, including unexpected files and database modifications
• Review server logs for any suspicious activity that may indicate prior exploitation
• Implement a Web Application Firewall (WAF) with rules to block CSRF and command injection attempts

Patch Information

At the time of publication, no official patch has been confirmed for this vulnerability. Users are strongly advised to remove the WP Video Posts plugin (versions 3.5.1 and earlier) from their WordPress installations until the vendor releases a security update. Monitor the Patchstack vulnerability database for updates on patch availability.

Workarounds

• Completely remove or deactivate the WP Video Posts plugin until a patch is available
• Implement IP-based access restrictions on the WordPress admin panel to limit exposure
• Use a security plugin that provides CSRF protection and command injection filtering
• Consider deploying a reverse proxy with WAF capabilities to filter malicious requests before they reach WordPress

# Disable WP Video Posts plugin via WP-CLI
wp plugin deactivate wp-video-posts --path=/var/www/html/wordpress

# Verify plugin is deactivated
wp plugin list --path=/var/www/html/wordpress | grep wp-video-posts

# Optional: Remove the plugin entirely
wp plugin delete wp-video-posts --path=/var/www/html/wordpress