CVE-2025-31023: Seo Meta Tags Plugin CSRF Vulnerability

CVE-2025-31023 Overview

CVE-2025-31023 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the SEO Meta Tags WordPress plugin developed by Purab. This vulnerability allows attackers to perform unauthorized actions on behalf of authenticated users by exploiting the lack of proper CSRF token validation. When successfully exploited, attackers can potentially escalate privileges within the WordPress installation.

Critical Impact

This CSRF vulnerability can lead to privilege escalation, allowing attackers to manipulate WordPress site settings and potentially gain administrative access through social engineering attacks.

Affected Products

• SEO Meta Tags WordPress Plugin versions up to and including 1.4
• WordPress installations running the vulnerable seo-meta-tags plugin

Discovery Timeline

• 2025-04-09 - CVE-2025-31023 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-31023

Vulnerability Analysis

This vulnerability is classified under CWE-352 (Cross-Site Request Forgery). The SEO Meta Tags plugin fails to implement proper anti-CSRF protections on sensitive administrative functions. When an authenticated administrator visits a malicious page crafted by an attacker, the browser automatically includes authentication cookies with requests to the vulnerable WordPress site, allowing the attacker to execute privileged actions without the user's knowledge or consent.

The vulnerability chain enables attackers to escalate from CSRF to privilege escalation, meaning that beyond simple unauthorized actions, attackers can potentially modify user roles, create new administrative accounts, or alter critical site configurations.

Root Cause

The root cause of this vulnerability lies in the absence of nonce verification in the plugin's form handlers and AJAX endpoints. WordPress provides the wp_nonce_field() and wp_verify_nonce() functions specifically to prevent CSRF attacks, but the SEO Meta Tags plugin versions through 1.4 do not properly implement these security measures on state-changing operations.

Attack Vector

The attack requires social engineering to lure an authenticated WordPress administrator to visit a malicious website or click a crafted link. The malicious page contains hidden forms or JavaScript that automatically submits requests to the vulnerable plugin endpoints. Since the victim's browser includes valid session cookies with these requests, the WordPress installation processes them as legitimate administrative actions.

The attacker typically hosts a webpage containing malicious HTML forms with preset values targeting the vulnerable plugin endpoints. When the administrator loads this page, the forms auto-submit via JavaScript, executing unauthorized configuration changes or privilege modifications on the target WordPress site.

Detection Methods for CVE-2025-31023

Indicators of Compromise

• Unexpected changes to WordPress user roles or permissions
• New administrative accounts created without authorization
• Modified SEO meta tag configurations without administrator action
• Unusual HTTP POST requests to plugin endpoints in access logs
• WordPress audit logs showing configuration changes from unexpected referrer URLs

Detection Strategies

• Review WordPress access logs for POST requests to seo-meta-tags plugin endpoints from external referrers
• Monitor user account creation and role modification events in WordPress audit logs
• Implement Content Security Policy (CSP) headers to detect and block unauthorized form submissions
• Deploy Web Application Firewall (WAF) rules to detect CSRF attack patterns

Monitoring Recommendations

• Enable comprehensive logging for all WordPress administrative actions
• Configure alerts for user permission changes and new account creation
• Monitor for suspicious referrer headers in requests to WordPress admin endpoints
• Regularly audit installed plugin versions against known vulnerability databases

How to Mitigate CVE-2025-31023

Immediate Actions Required

• Update the SEO Meta Tags plugin to the latest version that includes CSRF protections
• If no patch is available, consider temporarily deactivating the plugin until a fix is released
• Review WordPress user accounts for any unauthorized changes or additions
• Implement additional security layers such as Web Application Firewalls with CSRF protection rules

Patch Information

Refer to the Patchstack WordPress Vulnerability Report for the latest patch information and remediation guidance. WordPress administrators should check for plugin updates through the WordPress dashboard or contact the plugin developer for security patches.

Workarounds

• Implement a Web Application Firewall (WAF) with CSRF detection capabilities
• Use browser extensions or security plugins that add SameSite cookie attributes
• Educate administrators about the risks of visiting untrusted links while logged into WordPress
• Consider implementing additional authentication for sensitive administrative actions
• Restrict administrative access to trusted IP addresses where feasible

# WordPress CLI command to check plugin version
wp plugin list --name=seo-meta-tags --fields=name,version,update_version

# Check for and install available updates
wp plugin update seo-meta-tags

# Temporarily deactivate if no patch is available
wp plugin deactivate seo-meta-tags