CVE-2025-57973
📋 TL;DR
This stored XSS vulnerability in the WP-Members WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using WP-Members versions up to 3.5.4.2 are affected, potentially compromising user sessions and site integrity.
💻 Affected Systems
- WP-Members 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 credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers steal user session cookies to hijack accounts, inject malicious advertisements, or redirect users to phishing pages.
If Mitigated
With proper input validation and output encoding, the impact is limited to failed exploitation attempts with no data compromise.
🎯 Exploit Status
Exploitation requires the ability to submit input through WP-Members forms, which typically requires some level of access to the WordPress site.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.5.4.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WP-Members and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable WP-Members Plugin
WordPressTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wp-members
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Enable Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP-Members versionCheck Version:
wp plugin get wp-members --field=versionVerify Fix Applied:
Verify WP-Members version is 3.5.4.3 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WP-Members endpoints
- JavaScript payloads in form submissions
- Multiple failed login attempts followed by successful access
Network Indicators:
- Suspicious script tags in HTTP requests to /wp-content/plugins/wp-members/
- Unexpected redirects from WP-Members pages
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/wp-members/" OR plugin="wp-members") AND (http_method="POST" OR payload CONTAINS "<script>" OR payload CONTAINS "javascript:")