CVE-2024-37275
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the NextScripts WordPress plugin, which could execute in victims' browsers. It affects all WordPress sites using NextScripts versions up to 4.4.6. The vulnerability is reflected XSS, meaning the malicious input is immediately returned in the server's response.
💻 Affected Systems
- NextScripts Social Networks Auto-Poster for WordPress
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deface websites.
Likely Case
Session hijacking leading to unauthorized access to WordPress admin panels or user accounts.
If Mitigated
Limited impact if proper input validation and output encoding are implemented, or if the vulnerable endpoint is not publicly accessible.
🎯 Exploit Status
Reflected XSS typically requires user interaction (clicking a malicious link) but is straightforward to exploit once the vulnerable parameter is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.4.7 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'NextScripts Social Networks Auto-Poster'. 4. Click 'Update Now' if available, or manually update to version 4.4.7+. 5. Verify the update completed successfully.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the NextScripts plugin until patched.
wp plugin deactivate social-networks-auto-poster-facebook-twitter-g
Web Application Firewall (WAF) rule
allConfigure WAF to block XSS patterns targeting the vulnerable parameter.
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to mitigate script execution.
- Restrict access to the WordPress admin interface to trusted IP addresses only.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for NextScripts version. If version is 4.4.6 or lower, it is vulnerable.Check Version:
wp plugin get social-networks-auto-poster-facebook-twitter-g --field=versionVerify Fix Applied:
Confirm the plugin version is 4.4.7 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests containing script tags or JavaScript code to NextScripts plugin endpoints
- Multiple failed login attempts following suspicious requests
Network Indicators:
- HTTP requests with suspicious parameters containing <script>, javascript:, or encoded payloads
SIEM Query:
source="wordpress.log" AND "NextScripts" AND ("<script" OR "javascript:" OR "%3Cscript")🔗 References
- https://patchstack.com/database/vulnerability/social-networks-auto-poster-facebook-twitter-g/wordpress-nextscripts-plugin-4-4-6-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/social-networks-auto-poster-facebook-twitter-g/wordpress-nextscripts-plugin-4-4-6-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
