CVE-2025-28910
📋 TL;DR
This CSRF vulnerability in the WP Hide Admin Bar WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. It affects all WordPress sites using WP Hide Admin Bar versions up to 2.0. The vulnerability enables attackers to modify plugin settings without the admin's knowledge.
💻 Affected Systems
- WP Hide Admin Bar 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 disable the admin bar hiding functionality, potentially exposing admin interfaces to unauthorized users or changing other plugin settings that affect site security.
Likely Case
Attackers modify plugin settings to disable admin bar hiding, potentially exposing admin interfaces or causing minor site configuration changes.
If Mitigated
With proper CSRF protections and admin awareness, exploitation attempts would fail, resulting in no impact.
🎯 Exploit Status
Exploitation requires tricking an authenticated admin into clicking a malicious link or visiting a compromised page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WP Hide Admin Bar. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin.
🔧 Temporary Workarounds
Add CSRF Protection Manually
allAdd nonce verification to plugin forms to prevent CSRF attacks
Requires modifying plugin PHP files to add wp_nonce_field() and wp_verify_nonce() calls
🧯 If You Can't Patch
- Deactivate and remove the WP Hide Admin Bar plugin immediately
- Implement web application firewall rules to block CSRF attempts targeting the plugin endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP Hide Admin Bar version 2.0 or earlierCheck Version:
wp plugin list --name='wp-hide-admin-bar' --field=versionVerify Fix Applied:
Verify plugin version is higher than 2.0 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints without referrer headers
- Unexpected changes to wp_hide_admin_bar settings in database
Network Indicators:
- HTTP requests to plugin endpoints without CSRF tokens
- Suspicious referrer domains in admin area requests
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "wp-hide-admin-bar") AND http_method="POST" AND NOT csrf_token EXISTS