CVE-2025-11707
📋 TL;DR
The Login Lockdown & Protection WordPress plugin has an IP block bypass vulnerability where attackers can generate valid unblock keys if they know an administrator's email address. This allows unauthenticated attackers to bypass login attempt blocks and continue brute-force attacks. All WordPress sites using this plugin up to version 2.14 are affected.
💻 Affected Systems
- Login Lockdown & Protection 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 bypass IP blocking and successfully brute-force administrator credentials, leading to complete site compromise and potential data exfiltration.
Likely Case
Attackers bypass IP blocking to continue brute-force attacks, increasing the chance of credential compromise and unauthorized access.
If Mitigated
With proper monitoring and strong credentials, impact is limited to failed login attempts and potential temporary service disruption.
🎯 Exploit Status
Exploitation requires administrator email address but is otherwise straightforward. The vulnerability is well-documented in public sources.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.15 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Login Lockdown & Protection. 4. Click 'Update Now' if available, or download version 2.15+ from WordPress repository. 5. Activate the updated plugin.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Login Lockdown & Protection plugin until patched
wp plugin deactivate login-lockdown
Implement web application firewall rule
allBlock requests to the unblock functionality endpoint
Block access to /wp-content/plugins/login-lockdown/ endpoint
🧯 If You Can't Patch
- Disable the Login Lockdown & Protection plugin immediately
- Implement alternative login protection such as fail2ban, Cloudflare WAF, or security plugins with proper IP blocking
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Login Lockdown & Protection → Version. If version is 2.14 or lower, you are vulnerable.Check Version:
wp plugin get login-lockdown --field=versionVerify Fix Applied:
Verify plugin version is 2.15 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from same IP after supposed block
- Unusual unblock key generation requests
- Successful login after many failed attempts from previously blocked IP
Network Indicators:
- HTTP POST requests to /wp-content/plugins/login-lockdown/ unblock endpoints
- Rapid login attempts from same IP address
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/login-lockdown/" OR plugin_name="login-lockdown") AND (event_type="failed_login" OR event_type="unblock_request")🔗 References
- https://plugins.trac.wordpress.org/browser/login-lockdown/trunk/libs/functions.php
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3389843%40login-lockdown&new=3389843%40login-lockdown&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9c732ea2-0263-4b18-9aa4-29e387b26362?source=cve
