CVE-2025-2166
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute reflected cross-site scripting (XSS) attacks by tricking users into clicking malicious links. The CM FAQ WordPress plugin versions up to 1.2.5 are affected, potentially compromising user sessions and enabling client-side attacks.
💻 Affected Systems
- CM FAQ WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, take over WordPress sites, install backdoors, or redirect users to malicious sites.
Likely Case
Session hijacking of logged-in users, credential theft, or defacement of vulnerable pages.
If Mitigated
Limited impact if users have script blockers, modern browsers with XSS filters, or if the site uses Content Security Policy (CSP).
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly exploited via phishing or malicious links.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.6
Vendor Advisory: https://plugins.trac.wordpress.org/browser/cm-faq/tags/1.2.6/package/cminds-free.php#L2662
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'CM FAQ' and click 'Update Now'. 4. Verify version is 1.2.6 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the CM FAQ plugin until patched.
wp plugin deactivate cm-faq
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self';"
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads.
- Restrict plugin access to trusted users only using WordPress role management.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for CM FAQ version 1.2.5 or lower.Check Version:
wp plugin list --name=cm-faq --field=versionVerify Fix Applied:
Confirm CM FAQ plugin version is 1.2.6 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual query parameters containing script tags in WordPress or web server logs
- Multiple 400/404 errors with suspicious parameters
Network Indicators:
- HTTP requests with script tags in query strings
- Referer headers containing malicious payloads
SIEM Query:
source="*access.log*" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")🔗 References
- https://plugins.trac.wordpress.org/browser/cm-faq/tags/1.2.4/package/cminds-free.php#L2662
- https://plugins.trac.wordpress.org/browser/cm-faq/tags/1.2.5/package/cminds-free.php#L2662
- https://plugins.trac.wordpress.org/browser/cm-faq/tags/1.2.6/package/cminds-free.php#L2662
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8b8d21cb-fe87-4947-a44b-7d670cf2123e?source=cve
