CVE-2025-14888

4.4 MEDIUM

📋 TL;DR

This stored XSS vulnerability in the Simple User Meta Editor WordPress plugin allows authenticated administrators to inject malicious scripts into user meta fields. The scripts execute when users view affected pages, potentially compromising their browsers. Only WordPress multi-site installations and sites with unfiltered_html disabled are affected.

💻 Affected Systems

Products:
  • Simple User Meta Editor WordPress Plugin
Versions: All versions up to and including 1.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ✅ No
Notes: Only vulnerable on WordPress multi-site installations OR single-site installations where unfiltered_html capability is disabled (not default).

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Administrator account compromise leading to site takeover, credential theft from users, or malware distribution to visitors.

🟠

Likely Case

Limited session hijacking or defacement since it requires admin-level access and specific configurations.

🟢

If Mitigated

No impact if unfiltered_html is enabled (WordPress default) or on single-site installations.

🌐 Internet-Facing: MEDIUM - Public WordPress sites are exposed but exploitation requires admin credentials and specific configurations.
🏢 Internal Only: LOW - Internal WordPress installations face minimal risk due to restricted admin access and likely standard configurations.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW - Simple script injection once admin access is obtained.

Requires administrator-level WordPress access and specific site configurations to be exploitable.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.1 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/simple-user-meta-editor

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Simple User Meta Editor. 4. Click 'Update Now' if available, or delete and reinstall latest version. 5. Verify plugin version is 1.0.1 or higher.

🔧 Temporary Workarounds

Enable unfiltered_html capability

all

Enable the unfiltered_html capability for administrators (WordPress default), which prevents this vulnerability.

Add to wp-config.php: define('ALLOW_UNFILTERED_UPLOADS', true);

Disable or remove plugin

linux

Temporarily disable or completely remove the vulnerable plugin until patched.

wp plugin deactivate simple-user-meta-editor
wp plugin delete simple-user-meta-editor

🧯 If You Can't Patch

  • Restrict administrator accounts to trusted personnel only and implement strong authentication.
  • Enable WordPress security plugins that detect and block XSS attempts in user content.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Simple User Meta Editor. If version is 1.0.0 or lower AND site is multi-site OR unfiltered_html is disabled, you are vulnerable.

Check Version:

wp plugin get simple-user-meta-editor --field=version

Verify Fix Applied:

Confirm plugin version is 1.0.1 or higher in WordPress admin panel. Test by attempting to inject script in user meta field - it should be sanitized.

📡 Detection & Monitoring

Log Indicators:

  • Unusual modifications to user_meta database table
  • Admin users saving suspicious script-like content in user fields

Network Indicators:

  • Unexpected JavaScript loading from user-generated content pages

SIEM Query:

source="wordpress" AND (event="user_meta_update" AND data CONTAINS "<script>")

🔗 References

📤 Share & Export