CVE-2025-53575
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users through improper input sanitization in the Primer MyData for WooCommerce WordPress plugin. It affects all WordPress sites using vulnerable versions of this plugin, potentially compromising user sessions and data. The vulnerability is reflected XSS, meaning the malicious script is reflected back from the server in the response.
💻 Affected Systems
- Primer MyData for WooCommerce 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 session cookies, perform actions as authenticated users, redirect users to malicious sites, or deface websites by injecting malicious content.
Likely Case
Session hijacking leading to unauthorized access to user accounts, data theft, or credential harvesting through phishing-like attacks.
If Mitigated
Limited impact with proper Content Security Policy (CSP) headers, input validation, and output encoding in place.
🎯 Exploit Status
Reflected XSS typically requires user interaction (clicking a malicious link) but is straightforward to exploit once the vulnerable parameter is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 4.2.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Primer MyData for WooCommerce'. 4. Click 'Update Now' if available, or download latest version from WordPress repository. 5. Activate the updated plugin.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources and mitigate XSS impact.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or configure in web server settings (Apache/Nginx)
Disable vulnerable plugin
linuxTemporarily disable the Primer MyData plugin until patched.
wp plugin deactivate primer-mydata
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads in requests.
- Monitor and filter user input for script tags and malicious patterns at the application level.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Primer MyData version. If version is 4.2.5 or lower, you are vulnerable.Check Version:
wp plugin list --name=primer-mydata --field=versionVerify Fix Applied:
Verify plugin version is 4.2.6 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST 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 in query strings
SIEM Query:
source="web_server_logs" AND ("<script>" OR "javascript:" OR "%3Cscript%3E")