CVE-2025-68844

7.1 HIGH

📋 TL;DR

This reflected cross-site scripting (XSS) vulnerability in the Membee Login WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects all WordPress sites using the Membee Login plugin version 2.3.6 and earlier. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.

💻 Affected Systems

Products:
  • Membee Login WordPress Plugin
Versions: <= 2.3.6
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Membee Login plugin 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 steal administrator session cookies, gain full control of the WordPress site, install backdoors, deface the site, or steal sensitive user data.

🟠

Likely Case

Attackers steal user session cookies to hijack accounts, redirect users to phishing pages, or perform limited actions within user permissions.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Reflected XSS typically requires user interaction (clicking a malicious link) but is easy to exploit once the vulnerability is understood.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.3.7 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/membees-member-login-widget/vulnerability/wordpress-membee-login-plugin-2-3-6-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 'Membee Login' and click 'Update Now'. 4. Verify the plugin version is 2.3.7 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Membee Login plugin until patched.

wp plugin deactivate membees-member-login-widget

Web Application Firewall (WAF)

all

Configure WAF rules to block XSS payloads targeting the vulnerable endpoint.

🧯 If You Can't Patch

  • Implement Content Security Policy (CSP) headers to restrict script execution
  • Use input validation and output encoding in custom code that interacts with the plugin

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Membee Login version <= 2.3.6

Check Version:

wp plugin get membees-member-login-widget --field=version

Verify Fix Applied:

Verify plugin version is 2.3.7 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual GET/POST requests containing script tags or JavaScript payloads to login-related endpoints
  • Multiple failed login attempts from same IP with suspicious parameters

Network Indicators:

  • HTTP requests with suspicious parameters like <script>alert()</script> in query strings
  • Traffic patterns showing users being redirected to external domains after visiting login pages

SIEM Query:

source="web_server_logs" AND (uri="*login*" OR uri="*widget*" OR uri="*membee*") AND (query="*<script>*" OR query="*javascript:*" OR query="*onerror=*" OR query="*onload=*")

🔗 References

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