CVE-2024-37237
📋 TL;DR
This CSRF vulnerability in the FS Poster WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. It affects all WordPress sites running FS Poster versions up to 6.5.8. Attackers could modify plugin settings or perform other administrative actions without the victim's knowledge.
💻 Affected Systems
- FS Poster 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
An attacker could completely compromise the WordPress site by tricking an admin into changing critical settings, installing malicious plugins, or granting attacker access.
Likely Case
Attackers modify plugin settings to redirect users, inject malicious content, or disrupt normal plugin functionality.
If Mitigated
With proper CSRF protections and user awareness, the risk is minimal as it requires user interaction and authentication.
🎯 Exploit Status
CSRF attacks are well-understood and relatively simple to execute, but require social engineering to trick authenticated users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find FS Poster and click 'Update Now'. 4. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection to WordPress forms if you cannot update immediately
Requires custom WordPress development - no single command
Use Security Plugins
allInstall WordPress security plugins that include CSRF protection
Install via WordPress admin: Wordfence, Sucuri, or iThemes Security
🧯 If You Can't Patch
- Disable the FS Poster plugin until it can be updated
- Implement strict access controls and educate administrators about CSRF risks
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins → FS Poster versionCheck Version:
wp plugin list --name=fs-poster --field=version (if WP-CLI installed)Verify Fix Applied:
Verify FS Poster version is 6.5.9 or higher in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unexpected plugin setting changes
- Multiple failed admin actions from same IP
- Unusual POST requests to admin-ajax.php
Network Indicators:
- Cross-origin requests to WordPress admin endpoints
- Suspicious referrer headers in admin requests
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "/wp-admin/") AND http_method="POST" AND referrer NOT CONTAINS own_domain