CVE-2025-10311 Overview
CVE-2025-10311 is a Cross-Site Request Forgery (CSRF) vulnerability in the Comment Info Detector plugin for WordPress. The flaw affects all versions up to and including 1.0.5. The plugin fails to validate nonces on the options.php file when processing form submissions. An unauthenticated attacker can craft a malicious request that modifies plugin settings if a site administrator is tricked into clicking a link or visiting an attacker-controlled page. The issue is classified under CWE-352: Cross-Site Request Forgery.
Critical Impact
Unauthenticated attackers can alter Comment Info Detector plugin settings on affected WordPress sites by leveraging an authenticated administrator's session through social engineering.
Affected Products
- Comment Info Detector plugin for WordPress — all versions through 1.0.5
- WordPress sites with the plugin installed and activated
- Administrator accounts susceptible to social engineering vectors
Discovery Timeline
- 2025-10-03 - CVE-2025-10311 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-10311
Vulnerability Analysis
The Comment Info Detector plugin exposes an administrative settings handler through options.php without any request origin verification. WordPress provides a built-in nonce mechanism (wp_nonce_field() and check_admin_referer()) that binds form submissions to a specific user session. The plugin omits this validation entirely. As a result, any HTTP POST request reaching the settings endpoint is processed as legitimate when accompanied by a valid administrator session cookie. An attacker who hosts a crafted HTML page or embeds a malicious form in a comment or email can force the administrator's browser to submit that request. The browser automatically attaches session credentials, and the plugin honors the settings change.
Root Cause
The root cause is missing nonce validation in the plugin's settings handler at options.php line 7. Without nonce verification, the plugin cannot distinguish between an intentional administrator action and a forged cross-site request. This is a canonical CWE-352 pattern.
Attack Vector
Exploitation requires user interaction from an authenticated administrator. The attacker prepares a page containing an auto-submitting form or an image tag targeting the vulnerable endpoint. The attacker then delivers the link through phishing, a forum post, or a hijacked third-party site. When the administrator visits the page while logged into WordPress, the browser submits the request with valid credentials. The plugin applies the attacker-controlled settings without further checks. Confidentiality is not directly affected, but integrity of plugin configuration is compromised.
See the Wordfence Vulnerability Report and the WordPress Plugin Code Review for technical details of the vulnerable handler.
Detection Methods for CVE-2025-10311
Indicators of Compromise
- Unexpected changes to Comment Info Detector plugin configuration in the WordPress wp_options table.
- Administrator HTTP referrers to options.php originating from external or unrelated domains.
- Access log entries showing POST requests to the plugin's settings endpoint without a preceding GET of the admin settings page.
Detection Strategies
- Monitor web server access logs for POST requests to /wp-admin/options.php with Referer headers pointing to domains outside the site.
- Audit WordPress database changes to plugin option keys associated with Comment Info Detector.
- Deploy a Web Application Firewall (WAF) rule that inspects requests to the plugin endpoint for missing or invalid _wpnonce parameters.
Monitoring Recommendations
- Enable WordPress audit logging to record plugin settings modifications with user attribution and source IP.
- Alert on administrator session activity originating from unusual referrers or geolocations.
- Correlate email gateway phishing detections with subsequent administrator authentication events.
How to Mitigate CVE-2025-10311
Immediate Actions Required
- Deactivate the Comment Info Detector plugin until a patched version is confirmed available.
- Instruct WordPress administrators to log out of admin sessions before browsing untrusted sites.
- Review the plugin's current configuration for unauthorized modifications and restore known-good settings.
Patch Information
At the time of the last NVD update on 2026-06-17, no fixed version has been published beyond 1.0.5. Monitor the WordPress plugin repository and the Wordfence Vulnerability Report for release announcements. Apply the update as soon as a version implementing wp_nonce_field() and check_admin_referer() is available.
Workarounds
- Remove or deactivate the Comment Info Detector plugin until an official fix ships.
- Restrict /wp-admin/ access to trusted IP ranges through web server or WAF rules.
- Require administrators to use a dedicated browser profile for WordPress management to reduce CSRF exposure from unrelated browsing.
- Enforce SameSite=Strict on the WordPress authentication cookie where compatible with your deployment.
# Example: restrict wp-admin access by IP using Apache .htaccess
<Files "options.php">
Require ip 203.0.113.0/24
Require ip 198.51.100.42
</Files>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
