CVE-2025-26982
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in the DSGVO Youtube WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects all WordPress sites using the DSGVO Youtube plugin version 1.5.1 and earlier. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
💻 Affected Systems
- DSGVO Youtube 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 visitors to phishing/malware sites.
Likely Case
Attackers steal user session cookies, perform actions as authenticated users, or redirect users to malicious content.
If Mitigated
With proper Content Security Policy (CSP) headers and input validation, impact is limited to the specific vulnerable page component.
🎯 Exploit Status
XSS vulnerabilities are commonly weaponized and require minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find 'DSGVO Youtube' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version from WordPress repository.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
Disable Plugin
linuxTemporarily disable the vulnerable plugin until patched
wp plugin deactivate dsgvo-youtube
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Remove plugin and use alternative YouTube embedding solutions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for DSGVO Youtube version 1.5.1 or earlierCheck Version:
wp plugin get dsgvo-youtube --field=versionVerify Fix Applied:
Verify plugin version is 1.5.2 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests with script tags or JavaScript in parameters
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script>, javascript:, or encoded XSS payloads
SIEM Query:
web.url:*script* OR web.url:*javascript:* OR web.param:*<script>*