CVE-2025-53266
📋 TL;DR
CVE-2025-53266 is a missing authorization vulnerability in the EdwardBock Cron Logger WordPress plugin that allows unauthorized users to access functionality intended only for administrators. This affects all WordPress sites running Cron Logger versions up to 1.3.0. Attackers could exploit this to view cron job logs or potentially modify cron settings.
💻 Affected Systems
- EdwardBock Cron Logger 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
Unauthorized users could modify cron job configurations, disrupt scheduled tasks, or gain access to sensitive system information logged by cron jobs.
Likely Case
Unauthenticated or low-privileged users can view cron job logs containing potentially sensitive information about system operations and scheduled tasks.
If Mitigated
With proper access controls, only authenticated administrators can access cron logging functionality, preventing information disclosure.
🎯 Exploit Status
Exploitation requires simple HTTP requests to vulnerable endpoints. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Cron Logger plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 1.3.1+ from WordPress repository.
🔧 Temporary Workarounds
Disable Cron Logger Plugin
allTemporarily disable the vulnerable plugin until patched version can be installed.
wp plugin deactivate cron-logger
Restrict Access via .htaccess
linuxBlock access to cron logger endpoints at web server level.
# Add to .htaccess:
<FilesMatch "cron-logger">
Order Deny,Allow
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Remove Cron Logger plugin completely and use alternative cron monitoring solutions
- Implement web application firewall rules to block requests to /wp-content/plugins/cron-logger/ endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Cron Logger version. If version is 1.3.0 or earlier, system is vulnerable.Check Version:
wp plugin get cron-logger --field=versionVerify Fix Applied:
After update, verify Cron Logger plugin shows version 1.3.1 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /wp-content/plugins/cron-logger/ from unauthenticated users
- Access to cron-logger-admin.php by non-admin users
Network Indicators:
- GET/POST requests to cron logger endpoints without authentication headers
SIEM Query:
source="web_access_logs" AND (uri_path="/wp-content/plugins/cron-logger/" OR uri_path="*cron-logger*") AND NOT (user="admin" OR user="administrator")