CVE-2024-2864

7.3 HIGH

📋 TL;DR

This vulnerability allows attackers to inject malicious scripts into web pages generated by the Youzify - Buddypress Moderation WordPress plugin, potentially affecting users who view those pages. It impacts all versions up to 1.2.5 of the plugin, and exploitation can occur without authentication.

💻 Affected Systems

Products:
  • Youzify - Buddypress Moderation WordPress plugin
Versions: n/a through 1.2.5
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress sites with the plugin installed and active; no special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal session cookies, redirect users to malicious sites, or perform actions on behalf of users, leading to account compromise or data theft.

🟠

Likely Case

Attackers inject scripts to steal user session data or deface parts of the site, impacting user trust and site integrity.

🟢

If Mitigated

With proper input validation and output encoding, the risk is minimized, but users might still see benign script errors if inputs are sanitized.

🌐 Internet-Facing: HIGH, as the vulnerability is in a WordPress plugin accessible via the web and can be exploited without authentication.
🏢 Internal Only: LOW, assuming the WordPress site is not exposed internally in a way that allows untrusted users to access vulnerable pages.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation involves injecting scripts into web inputs; details may be publicly available in references, but no confirmed PoC found.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.0.0

Vendor Advisory: https://patchstack.com/database/vulnerability/youzify-moderation/wordpress-youzify-buddypress-moderation-plugin-2-0-0-unauthenticated-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Go to Plugins > Installed Plugins. 3. Find 'Youzify - Buddypress Moderation' and update to version 2.0.0 or later. 4. Verify the update completes successfully.

🔧 Temporary Workarounds

Disable the plugin

all

Temporarily deactivate the vulnerable plugin to prevent exploitation until patching is possible.

wp plugin deactivate youzify-moderation

Implement WAF rules

all

Configure a Web Application Firewall to block XSS payloads targeting the plugin endpoints.

🧯 If You Can't Patch

  • Restrict access to the WordPress admin and affected pages to trusted IP addresses only.
  • Monitor logs for unusual script injection attempts and review user inputs for sanitization.

🔍 How to Verify

Check if Vulnerable:

Check the plugin version in WordPress admin under Plugins > Installed Plugins; if version is 1.2.5 or lower, it is vulnerable.

Check Version:

wp plugin get youzify-moderation --field=version

Verify Fix Applied:

After updating, confirm the plugin version is 2.0.0 or higher in the same location and test for XSS by attempting to inject scripts in user inputs.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST/GET requests with script tags or JavaScript code to plugin-specific URLs
  • Error logs showing failed script executions in plugin files

Network Indicators:

  • HTTP requests containing malicious payloads like <script>alert()</script> to endpoints related to the plugin

SIEM Query:

source="web_logs" AND (url:"/wp-content/plugins/youzify-moderation/" OR plugin:"youzify-moderation") AND (payload:"<script>" OR payload:"javascript:")

🔗 References

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