CVE-2025-11129
📋 TL;DR
The Include Fussball.de Widgets WordPress plugin has a stored XSS vulnerability that allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into website pages. These scripts execute whenever users visit the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using this plugin up to version 4.0.0 are affected.
💻 Affected Systems
- Include Fussball.de Widgets 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, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers with contributor accounts inject malicious scripts to steal user session cookies or credentials, potentially escalating privileges.
If Mitigated
With proper input validation and output escaping, the vulnerability would be prevented entirely.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has contributor-level credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 4.0.0
Vendor Advisory: https://plugins.trac.wordpress.org/browser/include-fussball-de-widgets/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Include Fussball.de Widgets'. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete the plugin.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily remove contributor-level access for untrusted users to prevent exploitation.
Disable Plugin
allDeactivate the vulnerable plugin until patched.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in 'api' and 'type' parameters
- Restrict plugin usage to trusted administrators only and remove contributor accounts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Include Fussball.de Widgets' version 4.0.0 or earlier.Check Version:
wp plugin list --name='include-fussball-de-widgets' --field=versionVerify Fix Applied:
Verify plugin version is higher than 4.0.0 or plugin is removed from the system.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php with 'api' or 'type' parameters containing script tags
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- HTTP requests containing script tags in 'api' or 'type' parameters
- Outbound connections to suspicious domains after visiting plugin pages
SIEM Query:
source="wordpress.log" AND ("api=" OR "type=") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")🔗 References
- https://plugins.trac.wordpress.org/browser/include-fussball-de-widgets/trunk/Frontend/Fubade.php#L231
- https://plugins.trac.wordpress.org/browser/include-fussball-de-widgets/trunk/Frontend/Fubade.php#L232
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f0a3df32-aa07-4cc0-97ba-bb4ab64ba6b9?source=cve
