CVE-2025-2881

5.3 MEDIUM

📋 TL;DR

The Developer Toolbar WordPress plugin exposes sensitive server information through a publicly accessible phpinfo.php script. This allows unauthenticated attackers to view PHP configuration details, environment variables, and potentially sensitive data. All WordPress sites using this plugin up to version 1.0.3 are affected.

💻 Affected Systems

Products:
  • Developer Toolbar WordPress Plugin
Versions: All versions up to and including 1.0.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with the vulnerable plugin version installed and activated.

⚠️ 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

Attackers obtain database credentials, API keys, or other sensitive configuration data leading to full system compromise.

🟠

Likely Case

Attackers gather reconnaissance information about server configuration, PHP settings, and environment variables to plan further attacks.

🟢

If Mitigated

Limited exposure of non-critical PHP configuration details with no sensitive credentials in environment variables.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires only accessing the vulnerable URL path. No special tools or skills needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.4 or later

Vendor Advisory: https://wordpress.org/plugins/developer-toolbar/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Developer Toolbar plugin. 4. Click 'Update Now' if update available. 5. Alternatively, delete plugin and install fresh version 1.0.4+.

🔧 Temporary Workarounds

Delete vulnerable file

linux

Manually remove the exposed phpinfo.php file from the plugin directory

rm /path/to/wordpress/wp-content/plugins/developer-toolbar/views/phpinfo.php

Restrict file access via .htaccess

linux

Block access to the vulnerable file using Apache mod_rewrite rules

<Files "phpinfo.php">
Order Allow,Deny
Deny from all
</Files>

🧯 If You Can't Patch

  • Deactivate and remove the Developer Toolbar plugin completely
  • Implement web application firewall rules to block access to /wp-content/plugins/developer-toolbar/views/phpinfo.php

🔍 How to Verify

Check if Vulnerable:

Access https://yoursite.com/wp-content/plugins/developer-toolbar/views/phpinfo.php - if it shows PHP configuration page, you're vulnerable.

Check Version:

Check WordPress admin plugins page or run: grep "Version:" /path/to/wordpress/wp-content/plugins/developer-toolbar/developer-toolbar.php

Verify Fix Applied:

Attempt to access the phpinfo.php URL - should return 404 or access denied error after fix.

📡 Detection & Monitoring

Log Indicators:

  • HTTP 200 requests to /wp-content/plugins/developer-toolbar/views/phpinfo.php
  • Unusual traffic patterns to plugin directory

Network Indicators:

  • GET requests to phpinfo.php from external IPs
  • Traffic spikes to plugin paths

SIEM Query:

source="web_logs" AND uri_path="/wp-content/plugins/developer-toolbar/views/phpinfo.php" AND response_code=200

🔗 References

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