CVE-2025-13730
📋 TL;DR
The OpenID Connect Generic Client WordPress plugin has a stored XSS vulnerability in all versions up to 3.10.0. Authenticated attackers with Contributor-level access or higher can inject malicious scripts that execute when users view affected pages. This affects all WordPress sites using vulnerable versions of this plugin.
💻 Affected Systems
- OpenID Connect Generic Client 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 steal administrator credentials, redirect users to malicious sites, deface websites, or install backdoors for persistent access.
Likely Case
Attackers with contributor access inject malicious scripts to steal user session cookies or credentials from visitors.
If Mitigated
With proper user role management and content review, impact is limited to potential defacement of specific pages.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.10.1
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3418927
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'OpenID Connect Generic Client'. 4. Click 'Update Now' if available, or manually update to version 3.10.1+. 5. Verify plugin is active and functioning.
🔧 Temporary Workarounds
Disable vulnerable shortcode
allRemove or disable the 'openid_connect_generic_auth_url' shortcode usage from all posts/pages
Restrict user roles
allTemporarily restrict Contributor and higher roles from editing content
🧯 If You Can't Patch
- Disable the OpenID Connect Generic Client plugin entirely
- Implement strict content review for all posts/pages using the vulnerable shortcode
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins. If OpenID Connect Generic Client version is 3.10.0 or lower, you are vulnerable.Check Version:
wp plugin list --name='openid-connect-generic' --field=versionVerify Fix Applied:
After updating, verify plugin version shows 3.10.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual post/page edits by Contributor-level users
- Suspicious script tags in post/page content
Network Indicators:
- External script loads from unexpected domains in page content
SIEM Query:
source="wordpress" AND (event="post_updated" OR event="page_updated") AND user_role="contributor"🔗 References
- https://plugins.trac.wordpress.org/browser/daggerhart-openid-connect-generic/trunk/includes/openid-connect-generic-client-wrapper.php#L241
- https://plugins.trac.wordpress.org/browser/daggerhart-openid-connect-generic/trunk/openid-connect-generic.php#L168
- https://plugins.trac.wordpress.org/changeset/3418927
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fe5fd453-b1fc-4d52-bb46-aebd68508891?source=cve
