CVE-2025-23869
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in the CJ Custom Content WordPress plugin allows attackers to perform stored cross-site scripting (XSS) attacks. This affects WordPress sites using CJ Custom Content plugin versions up to 2.0. Attackers can trick authenticated administrators into executing malicious actions that inject persistent scripts.
💻 Affected Systems
- CJ Custom Content 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 could inject malicious JavaScript that steals administrator credentials, redirects users to phishing sites, or takes full control of the WordPress site when administrators view compromised content.
Likely Case
Attackers create malicious posts/pages containing JavaScript that executes in visitors' browsers, potentially stealing session cookies or performing unauthorized actions on behalf of users.
If Mitigated
With proper CSRF tokens and Content Security Policy (CSP), the attack chain is broken, limiting impact to minor content manipulation.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users. The CSRF leads to stored XSS, making the attack persistent once successful.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'CJ Custom Content' and check if update is available. 4. Click 'Update Now' if update exists. 5. If no update exists, disable and remove the plugin immediately.
🔧 Temporary Workarounds
Implement CSRF Protection
WordPressAdd nonce verification to all plugin forms and AJAX requests
Requires code modification: Add wp_nonce_field() to forms and check_admin_referer() or wp_verify_nonce() in processing
Enable Content Security Policy
ApacheImplement CSP headers to prevent execution of unauthorized scripts
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' https://trusted.cdn.com;"
🧯 If You Can't Patch
- Disable CJ Custom Content plugin immediately
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for CJ Custom Content version. If version is 2.0 or earlier, you are vulnerable.Check Version:
wp plugin list --name='cj-custom-content' --field=versionVerify Fix Applied:
After update, verify plugin version is higher than 2.0. Test forms for presence of nonce fields (_wpnonce parameter).📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to wp-admin/admin-ajax.php or wp-admin/post.php without referrer/nonce
- Unusual content updates from single IP followed by script tags in content
Network Indicators:
- CSRF attacks typically involve POST requests without proper Origin/Referer headers
- Look for requests with suspicious parameters containing JavaScript payloads
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path="/wp-admin/post.php") AND http_method=POST AND NOT (referrer CONTAINS yourdomain.com OR params CONTAINS "_wpnonce")