CVE-2025-6786
📋 TL;DR
The DocCheck Login WordPress plugin versions up to 1.1.5 contain an authentication bypass vulnerability that allows unauthenticated attackers to read password-protected posts. This occurs because the plugin redirects users to login after the protected content has already loaded. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- DocCheck Login 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
Sensitive password-protected content (private announcements, internal documents, subscriber-only material) is exposed to unauthorized users, potentially leading to data breaches or intellectual property theft.
Likely Case
Unauthorized users can read content intended only for authenticated users, compromising content privacy and potentially exposing sensitive information.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized content viewing without further system compromise.
🎯 Exploit Status
Exploitation requires no authentication and minimal technical skill - attackers simply need to access protected URLs.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.6 or later
Vendor Advisory: https://wordpress.org/plugins/doccheck-login/
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'DocCheck Login' plugin
4. Click 'Update Now' if update available
5. If no update available, deactivate and delete plugin
6. Install latest version from WordPress plugin repository
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate doccheck-login
Remove Password Protection
allTemporarily remove password protection from posts/pages
🧯 If You Can't Patch
- Implement web application firewall rules to block unauthorized access to protected content
- Monitor access logs for unusual patterns of protected content access
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → DocCheck Login version. If version is 1.1.5 or lower, you are vulnerable.Check Version:
wp plugin list --name=doccheck-login --field=versionVerify Fix Applied:
After updating, verify plugin version is 1.1.6 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful access to protected content
- Unauthenticated users accessing password-protected URLs
Network Indicators:
- HTTP requests to protected posts/pages without authentication headers
- Unusual traffic patterns to normally restricted content
SIEM Query:
source="wordpress_access.log" AND (uri="/wp-content/plugins/doccheck-login/" OR uri MATCHES "password-protected") AND status=200 AND NOT user_agent="bot"