CVE-2026-24939
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Modula Image Gallery WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. It affects all WordPress sites running Modula Image Gallery versions up to and including 2.13.6. The vulnerability enables unauthorized access to functionality that should be restricted.
💻 Affected Systems
- Modula Image Gallery (modula-best-grid-gallery) 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 gallery settings, delete or manipulate images, or potentially escalate privileges to gain administrative access to the WordPress site.
Likely Case
Unauthorized users could modify gallery configurations, change display settings, or access gallery management functions without proper permissions.
If Mitigated
With proper access controls and authentication mechanisms in place, only authorized administrators can access gallery management functions.
🎯 Exploit Status
Exploitation requires some level of access to the WordPress site but bypasses authorization checks for specific plugin functions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2.13.6
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find Modula Image Gallery
4. Click 'Update Now' if available
5. If no update available, download latest version from WordPress repository
6. Deactivate, delete old version, and install new version
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate modula-best-grid-gallery
Access Restriction via .htaccess
linuxRestrict access to plugin directories
Order Deny,Allow
Deny from all
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access the WordPress admin interface
- Enable WordPress security plugins that monitor and restrict unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Modula Image Gallery version numberCheck Version:
wp plugin get modula-best-grid-gallery --field=versionVerify Fix Applied:
Verify plugin version is greater than 2.13.6 and test authorization controls for gallery management functions📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-admin/admin-ajax.php with modula-related actions
- Unexpected gallery modifications by non-admin users
Network Indicators:
- HTTP POST requests to modula endpoints from unauthorized IPs
- Unusual admin-ajax.php requests
SIEM Query:
source="wordpress.log" AND ("modula" OR "admin-ajax") AND (status=200 OR status=403) AND user_role!=administrator