CVE-2025-3607
📋 TL;DR
This vulnerability allows authenticated WordPress users with Subscriber-level access or higher to change any user's password, including administrators, leading to account takeover and privilege escalation. All WordPress sites using the Frontend Login and Registration Blocks plugin versions 1.0.7 and earlier are affected. Attackers can gain administrative access to vulnerable WordPress installations.
💻 Affected Systems
- WordPress Frontend Login and Registration Blocks 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
Complete site compromise where attackers gain administrative access, install backdoors, steal sensitive data, deface the site, or use it for further attacks.
Likely Case
Account takeover leading to data theft, content manipulation, or lateral movement within the WordPress environment.
If Mitigated
Limited impact if strong network segmentation, monitoring, and least privilege principles are already implemented.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has any valid user account. The vulnerability is publicly documented with code references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.8 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/frontend-login-and-registration-blocks/trunk/inc/class-flr-blocks-lost-password.php#L115
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'Frontend Login and Registration Blocks'
4. Click 'Update Now' if update is available
5. If no update appears, manually download version 1.0.8+ from WordPress.org
6. Deactivate and delete old version
7. Upload and activate new version
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Frontend Login and Registration Blocks plugin until patched
wp plugin deactivate frontend-login-and-registration-blocks
Restrict user registration
allDisable new user registration to prevent attackers from creating accounts to exploit the vulnerability
Update WordPress Settings → General → Membership to uncheck 'Anyone can register'
🧯 If You Can't Patch
- Implement network segmentation to isolate WordPress instance from critical systems
- Enable detailed logging of user password change attempts and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Frontend Login and Registration Blocks' version 1.0.7 or earlierCheck Version:
wp plugin get frontend-login-and-registration-blocks --field=versionVerify Fix Applied:
Verify plugin version is 1.0.8 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Multiple password reset attempts for different users from same IP
- User role changes from Subscriber to Administrator
- Unusual password change events in WordPress logs
Network Indicators:
- HTTP POST requests to password reset endpoints with different user IDs
- Unusual authentication patterns from same source
SIEM Query:
source="wordpress" AND (event="password_reset" OR event="user_role_change") | stats count by src_ip, user