CVE-2025-2815

8.8 HIGH

📋 TL;DR

The Administrator Z WordPress plugin has an authorization bypass vulnerability that allows authenticated users with Subscriber-level access or higher to modify WordPress site options. Attackers can change the default user registration role to Administrator and enable user registration to gain full administrative control. All WordPress sites using Administrator Z plugin versions up to 2025.03.24 are affected.

💻 Affected Systems

Products:
  • WordPress Administrator Z plugin
Versions: All versions up to and including 2025.03.24
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Administrator Z plugin enabled and at least one authenticated user account (Subscriber role or higher).

⚠️ 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

Complete site takeover where attackers gain administrative access, install backdoors, steal data, deface the site, or use it for further attacks.

🟠

Likely Case

Attackers create administrative accounts for themselves, potentially leading to data theft, malware installation, or site defacement.

🟢

If Mitigated

With proper access controls and monitoring, unauthorized administrative account creation would be detected and prevented before significant damage occurs.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires authenticated access but only at Subscriber level, which is the lowest WordPress user role. Attack path is well-documented in vulnerability disclosures.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 2025.03.24

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3262319%40administrator-z&new=3262319%40administrator-z&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Administrator Z plugin. 4. Click 'Update Now' if available, or manually update to latest version. 5. Verify plugin is updated to version newer than 2025.03.24.

🔧 Temporary Workarounds

Disable Administrator Z plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate administrator-z

Restrict user registration

all

Disable new user registration in WordPress settings

🧯 If You Can't Patch

  • Disable the Administrator Z plugin immediately
  • Implement strict user access controls and monitor for unauthorized administrative account creation

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins → Administrator Z version. If version is 2025.03.24 or earlier, you are vulnerable.

Check Version:

wp plugin get administrator-z --field=version

Verify Fix Applied:

Verify Administrator Z plugin version is newer than 2025.03.24 in WordPress admin plugins page.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized modifications to wp_options table
  • New administrative user creation from non-admin accounts
  • Changes to default_role or users_can_register options

Network Indicators:

  • HTTP POST requests to adminz_import_backup function from non-admin users

SIEM Query:

source="wordpress" AND (event="plugin_action" AND plugin="administrator-z" AND action="import_backup") OR (event="user_registration" AND role="administrator")

🔗 References

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