CVE-2025-66094
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in Yada Wiki WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites running Yada Wiki version 3.5 or earlier are affected. The vulnerability enables attackers to steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- Yada Wiki 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 session cookies, take over WordPress sites, install backdoors, deface websites, or redirect users to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited in the wild. The Patchstack advisory provides technical details about the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.6 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/yada-wiki/vulnerability/wordpress-yada-wiki-plugin-3-5-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Yada Wiki and click 'Update Now'. 4. Verify the plugin version is 3.6 or higher.
🔧 Temporary Workarounds
Disable Yada Wiki Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate yada-wiki
Implement WAF Rules
allConfigure web application firewall to block XSS payloads targeting Yada Wiki endpoints
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Restrict access to Yada Wiki functionality to trusted users only
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → Yada Wiki versionCheck Version:
wp plugin get yada-wiki --field=versionVerify Fix Applied:
Verify Yada Wiki plugin version is 3.6 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Yada Wiki endpoints with script tags
- Multiple failed login attempts followed by successful Yada Wiki access
Network Indicators:
- HTTP requests containing script tags or JavaScript payloads to Yada Wiki URLs
- Outbound connections to suspicious domains after Yada Wiki page views
SIEM Query:
source="web_server" AND (uri="*yada-wiki*" AND (content="<script>" OR content="javascript:"))