CVE-2025-67552
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in the Walker Core WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. It affects all WordPress sites using Walker Core plugin versions up to and including 1.3.17. Attackers can exploit this to steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- Walker Core 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 malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing pages, or perform actions on behalf of authenticated users.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
DOM-based XSS typically requires user interaction (clicking a malicious link) but can be exploited without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.3.17
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find Walker Core plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patched version is released.
🔧 Temporary Workarounds
Disable Walker Core Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate walker-core
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'";
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Disable user input fields that trigger the DOM manipulation
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Walker Core versionCheck Version:
wp plugin get walker-core --field=versionVerify Fix Applied:
Verify Walker Core plugin version is greater than 1.3.17📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in URL parameters
- Multiple requests with script tags in query strings
- Unexpected redirects from Walker Core pages
Network Indicators:
- HTTP requests containing <script> tags in parameters
- Outbound connections to suspicious domains after visiting Walker Core pages
SIEM Query:
source="web_logs" AND (url="*<script>*" OR url="*javascript:*") AND url="*/wp-content/plugins/walker-core/*"