CVE-2025-58235

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Rustaurius Front End Users WordPress plugin allows attackers to inject malicious scripts into web pages. When users view affected pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using Front End Users plugin versions up to 3.2.33 are affected.

💻 Affected Systems

Products:
  • Rustaurius Front End Users WordPress Plugin
Versions: n/a through 3.2.33
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable plugin versions are affected regardless of configuration.

⚠️ 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 could steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers steal user session cookies or credentials, perform actions on behalf of authenticated users, or deploy malware to visitors.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts are neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires ability to inject malicious payloads into plugin inputs that are then stored and displayed to other users.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 3.2.33

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/front-end-only-users/vulnerability/wordpress-front-end-users-plugin-3-2-33-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Front End Users' plugin. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Input Validation Filter

all

Implement custom input validation to sanitize all user inputs before processing by the plugin.

🧯 If You Can't Patch

  • Disable the Front End Users plugin immediately
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Front End Users version number.

Check Version:

wp plugin list --name=front-end-users --field=version

Verify Fix Applied:

Confirm plugin version is higher than 3.2.33 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints with script tags or JavaScript code
  • Multiple failed login attempts following suspicious plugin activity

Network Indicators:

  • HTTP requests containing <script> tags or JavaScript event handlers to plugin URLs

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "front-end-users") AND (http_request CONTAINS "<script>" OR http_request CONTAINS "javascript:")

🔗 References

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