CVE-2025-26547
📋 TL;DR
This CSRF vulnerability in the My Login Logout WordPress plugin allows attackers to trick authenticated administrators into performing actions without their consent, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute when other users visit affected pages. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- My Login Logout 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 inject persistent malicious scripts that steal administrator credentials, hijack user sessions, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.
Likely Case
Attackers create fake admin interfaces or modify plugin settings to inject malicious JavaScript that steals cookies or session tokens from legitimate users.
If Mitigated
With proper CSRF tokens and input validation, the attack chain is broken, preventing both the CSRF and subsequent XSS exploitation.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a crafted page. The stored XSS payload then affects other users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 2.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'My Login Logout' plugin. 4. Click 'Update Now' if available, or manually update to version 2.5+. 5. Verify the plugin is active and functioning correctly.
🔧 Temporary Workarounds
Implement CSRF Protection
WordPressAdd nonce verification to plugin forms and actions to prevent CSRF attacks.
Modify plugin PHP files to include wp_nonce_field() and wp_verify_nonce() checks
Disable Plugin
WordPressTemporarily disable the vulnerable plugin until patched.
Navigate to WordPress admin > Plugins > Installed Plugins > Deactivate 'My Login Logout'
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with CSRF and XSS protection rules
- Restrict administrative access to trusted IP addresses only
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for 'My Login Logout' version 2.4 or earlier.Check Version:
wp plugin list --name='my-loginlogout' --field=versionVerify Fix Applied:
Confirm plugin version is 2.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints
- Multiple failed nonce verification attempts in WordPress debug logs
Network Indicators:
- Unexpected JavaScript payloads in HTTP POST parameters
- Requests from unusual referrers to admin endpoints
SIEM Query:
source="wordpress.log" AND ("admin-ajax.php" OR "my-loginlogout") AND (POST AND NOT nonce=*)