CVE-2024-53713
📋 TL;DR
This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in the Silverlight Video Player WordPress plugin that can lead to Stored Cross-Site Scripting (XSS). Attackers can trick authenticated administrators into executing malicious actions that inject persistent scripts into vulnerable websites. This affects all WordPress sites using Silverlight Video Player version 1.0 and earlier.
💻 Affected Systems
- Silverlight Video Player 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
Complete site takeover through persistent XSS payloads that steal admin credentials, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript that steals session cookies or performs unauthorized actions when users visit compromised pages.
If Mitigated
Limited impact with proper CSRF tokens and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users into clicking malicious links. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Silverlight Video Player. 4. Click 'Update Now' if available. 5. If no update appears, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Implement CSRF Protection
WordPressAdd nonce verification to all plugin forms and AJAX requests
Requires code modification: Add wp_nonce_field() to forms and wp_verify_nonce() checks
Apply Content Security Policy
allImplement CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or use WordPress security plugins to configure CSP
🧯 If You Can't Patch
- Deactivate and remove the Silverlight Video Player plugin immediately
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Silverlight Video Player version 1.0 or earlierCheck Version:
wp plugin list --name='silverlight-video-player' --field=versionVerify Fix Applied:
Verify plugin version is 1.0.1 or later, or confirm plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin admin endpoints without referrer headers
- Multiple failed nonce verification attempts in WordPress debug logs
Network Indicators:
- Cross-origin requests to plugin endpoints with suspicious parameters
- Unexpected iframe or form submissions to admin-ajax.php
SIEM Query:
source="wordpress.log" AND ("admin-ajax.php" OR "wp-admin/post.php") AND ("action=silverlight" OR "plugin=silverlight-video-player")