CVE-2024-39664
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the YMC Filter & Grids WordPress plugin that allows attackers to access functionality not properly constrained by access controls. It affects all versions up to 2.8.33, potentially enabling unauthorized users to perform actions reserved for authenticated users.
💻 Affected Systems
- YMC Filter & Grids 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 modify plugin settings, manipulate filtered content, or potentially escalate privileges to gain administrative access to the WordPress site.
Likely Case
Unauthorized users can access administrative functions of the plugin, potentially modifying filter/grid configurations or accessing restricted data.
If Mitigated
With proper access controls and authentication checks, only authorized users can access plugin functionality.
🎯 Exploit Status
Based on CWE-862 description, exploitation likely involves accessing endpoints without proper authorization checks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.34 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/ymc-smart-filter/wordpress-filter-grids-plugin-2-8-32-broken-authentication-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'YMC Filter & Grids'
4. Click 'Update Now' if update available
5. Alternatively, download latest version from WordPress repository and replace plugin files
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate ymc-smart-filter
Restrict Access via WAF
allBlock access to plugin-specific endpoints using web application firewall rules
🧯 If You Can't Patch
- Implement strict access controls at network level to restrict access to WordPress admin areas
- Enable WordPress security plugins with authorization monitoring and intrusion detection
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → YMC Filter & Grids → Version numberCheck Version:
wp plugin get ymc-smart-filter --field=versionVerify Fix Applied:
Verify plugin version is 2.8.34 or higher and test authorization controls for plugin functionality📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-content/plugins/ymc-smart-filter/ endpoints
- 403/401 errors followed by 200 success codes for same endpoints
Network Indicators:
- Unusual requests to plugin-specific endpoints from unauthenticated sources
- POST requests to admin-ajax.php with plugin-specific actions
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-content/plugins/ymc-smart-filter/" OR user_agent CONTAINS "ymc") AND response_code=200 AND auth_status="unauthenticated"