CVE-2025-31770
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Content Manager Light WordPress plugin allows attackers to inject malicious scripts into web pages. When users view compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using Content Manager Light version 3.2 or earlier are affected.
💻 Affected Systems
- Content Manager Light 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, deface websites, or redirect visitors to malicious sites, leading to complete compromise of affected WordPress installations.
Likely Case
Attackers inject malicious JavaScript that steals user session cookies or credentials when users view compromised content pages, potentially leading to account takeover of regular users or administrators.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers, preventing execution of injected code.
🎯 Exploit Status
Stored XSS vulnerabilities typically require some level of access to inject malicious content, but once injected, the payload executes automatically for all users viewing the compromised page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Content Manager Light. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 3.3+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Content Manager Light Plugin
allTemporarily deactivate the vulnerable plugin until patched version is available
wp plugin deactivate content-manager-light
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 wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove Content Manager Light plugin completely and use alternative content management solutions
- Implement web application firewall (WAF) rules to block XSS payload patterns
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Content Manager Light version. If version is 3.2 or earlier, system is vulnerable.Check Version:
wp plugin get content-manager-light --field=versionVerify Fix Applied:
Verify Content Manager Light plugin version is 3.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to content management endpoints with script tags
- Multiple failed XSS attempts in web server logs
- Unexpected JavaScript in content database entries
Network Indicators:
- HTTP requests containing <script> tags in POST parameters
- Outbound connections to suspicious domains from content pages
SIEM Query:
source="web_server_logs" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-admin/admin-ajax.php" OR uri_path LIKE "%/wp-content/plugins/content-manager-light/%"