CVE-2025-6726
📋 TL;DR
The Block Editor Gallery Slider WordPress plugin has an authorization vulnerability that allows authenticated users with Subscriber-level access or higher to modify post metadata for arbitrary posts. This affects all WordPress sites using this plugin up to version 1.1.1. Attackers can alter limited post data without proper permissions.
💻 Affected Systems
- Block Editor Gallery Slider 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 critical post metadata to inject malicious content, redirect users, or compromise post integrity across the entire site.
Likely Case
Limited post metadata tampering allowing content manipulation, SEO spam injection, or minor site defacement.
If Mitigated
No impact if proper access controls and plugin updates are implemented.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once authenticated. No public exploit code identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.2 or later
Vendor Advisory: https://wordpress.org/plugins/block-editor-gallery-slider/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Block Editor Gallery Slider'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.1.2+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patched.
wp plugin deactivate block-editor-gallery-slider
Restrict User Roles
allLimit Subscriber and other low-privilege user accounts until patched.
🧯 If You Can't Patch
- Remove or restrict Subscriber and other low-privilege user accounts
- Implement web application firewall rules to block suspicious post meta modification requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Block Editor Gallery Slider version. If version is 1.1.1 or lower, you are vulnerable.Check Version:
wp plugin get block-editor-gallery-slider --field=versionVerify Fix Applied:
Verify plugin version is 1.1.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual post_meta update requests from low-privilege users
- Multiple POST requests to plugin-specific endpoints from Subscriber accounts
Network Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with action=classic_gallery_slider_options from non-admin users
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND post_data CONTAINS "classic_gallery_slider_options") AND user_role!="administrator"