CVE-2025-8560
📋 TL;DR
The FancyTabs WordPress plugin has a stored XSS vulnerability in the 'title' parameter that allows authenticated attackers with Contributor access or higher to inject malicious scripts. These scripts execute when users view compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using FancyTabs version 1.1.0 or earlier are affected.
💻 Affected Systems
- WordPress FancyTabs 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 perform actions as authenticated users, potentially leading to complete site compromise.
Likely Case
Attackers with contributor access inject malicious scripts to steal session cookies or credentials from users viewing affected pages, leading to account takeover.
If Mitigated
With proper input validation and output escaping, the vulnerability is prevented, and only legitimate content is displayed.
🎯 Exploit Status
Exploitation requires authenticated access (Contributor or higher). The vulnerability is in the title parameter where insufficient sanitization allows script injection.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.1.0
Vendor Advisory: https://wordpress.org/plugins/fancytabs/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find FancyTabs plugin. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete plugin, then install latest version from WordPress repository.
🔧 Temporary Workarounds
Disable FancyTabs Plugin
allTemporarily deactivate the vulnerable plugin to prevent exploitation.
wp plugin deactivate fancytabs
Remove Contributor Access
allRestrict user roles to only trusted administrators until patched.
wp user list --role=contributor --field=ID | xargs wp user set-role subscriber
🧯 If You Can't Patch
- Remove the FancyTabs plugin entirely from your WordPress installation.
- Implement a web application firewall (WAF) with XSS protection rules to block malicious payloads.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel under Plugins > Installed Plugins for FancyTabs version 1.1.0 or earlier.Check Version:
wp plugin get fancytabs --field=versionVerify Fix Applied:
After update, verify FancyTabs version is greater than 1.1.0 in plugin details.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or admin-post.php with title parameter containing script tags or JavaScript code.
- Multiple failed login attempts followed by successful contributor-level login.
Network Indicators:
- HTTP requests with suspicious payloads in title parameters, especially from contributor accounts.
SIEM Query:
source="wordpress.log" AND (title="*<script>*" OR title="*javascript:*")