CVE-2025-3844
📋 TL;DR
The PeproDev Ultimate Profile Solutions WordPress plugin has an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user, including administrators, by exploiting improper OTP code handling. This affects WordPress sites using plugin versions 1.9.1 through 7.5.2. Attackers can gain full administrative access without valid credentials.
💻 Affected Systems
- PeproDev Ultimate Profile Solutions 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
Complete site takeover with administrative privileges, data theft, malware installation, and defacement.
Likely Case
Unauthorized access to user accounts, privilege escalation to administrator, and potential data exfiltration.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.
🎯 Exploit Status
Exploitation requires sending crafted AJAX requests to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.5.3
Vendor Advisory: https://plugins.trac.wordpress.org/browser/peprodev-ups/tags/7.5.3/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Ultimate Profile Solutions' and click 'Update Now'. 4. Verify version is 7.5.3 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate peprodev-ups
Restrict AJAX Access
linuxBlock access to wp-admin/admin-ajax.php for unauthenticated users via web application firewall or .htaccess.
# Add to .htaccess:
<Files "admin-ajax.php">
Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
</Files>
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure of WordPress admin interfaces.
- Enable multi-factor authentication for all administrative accounts to reduce impact of credential compromise.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Ultimate Profile Solutions' version between 1.9.1 and 7.5.2.Check Version:
wp plugin list --name='Ultimate Profile Solutions' --field=versionVerify Fix Applied:
Confirm plugin version is 7.5.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts via admin-ajax.php
- Multiple failed login attempts followed by successful login from same IP
- User role changes without administrative action
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with 'action=handel_ajax_req' and 'change_user_meta' parameters
- Unusual spikes in traffic to WordPress AJAX endpoints
SIEM Query:
source="wordpress.log" AND (uri="/wp-admin/admin-ajax.php" AND method="POST" AND (param="action" AND value="handel_ajax_req") AND (param="change_user_meta"))