CVE-2024-12624

6.4 MEDIUM

📋 TL;DR

This stored XSS vulnerability in the Sina Extension for Elementor WordPress plugin allows authenticated attackers with contributor-level access or higher to inject malicious scripts into web pages. The scripts execute whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. WordPress sites using vulnerable plugin versions are affected.

💻 Affected Systems

Products:
  • Sina Extension for Elementor WordPress Plugin
Versions: All versions up to and including 3.5.91
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with Elementor and the Sina Extension plugin installed. Contributor-level access or higher needed for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers with contributor access inject malicious scripts to steal user session cookies or credentials, potentially escalating privileges.

🟢

If Mitigated

With proper user role management and input validation, impact is limited to isolated script execution without data compromise.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is well-documented in security advisories.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.5.92 or later

Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3211218/sina-extension-for-elementor

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Sina Extension for Elementor'. 4. Click 'Update Now' if available. 5. Alternatively, download version 3.5.92+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Sina Image Differ Widget

all

Temporarily disable the vulnerable widget until patching is possible

Navigate to Elementor > Settings > Advanced > Disable Sina Image Differ widget

Restrict Contributor Permissions

all

Temporarily remove contributor-level access to reduce attack surface

Use WordPress role editor plugins to modify user capabilities

🧯 If You Can't Patch

  • Implement strict input validation and output escaping for all user-supplied data in custom code
  • Deploy web application firewall (WAF) rules to detect and block XSS payloads targeting the Sina Image Differ widget

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins > Sina Extension for Elementor version. If version is 3.5.91 or lower, you are vulnerable.

Check Version:

wp plugin list --name='sina-extension-for-elementor' --field=version

Verify Fix Applied:

After updating, verify plugin version is 3.5.92 or higher in WordPress plugins list. Test the Sina Image Differ widget functionality to ensure it works without errors.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with sina_extension parameters
  • Multiple failed login attempts followed by successful contributor-level login

Network Indicators:

  • HTTP requests containing script tags or JavaScript payloads in sina_extension parameters
  • Unexpected outbound connections from WordPress site after page views

SIEM Query:

source="wordpress.log" AND ("sina_extension" OR "sina-image-differ") AND ("script" OR "javascript" OR "onerror" OR "onload")

🔗 References

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