CVE-2024-4217

4.7 MEDIUM

📋 TL;DR

This vulnerability in the Shortcodes Ultimate Pro WordPress plugin allows attackers with Contributor-level access to inject malicious scripts into website content through improperly escaped shortcode settings. When visitors view pages containing these malicious shortcodes, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Shortcodes Ultimate Pro WordPress Plugin
Versions: All versions before 7.1.5
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin and at least one user with Contributor role or higher.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attacker gains administrative access, defaces website, steals visitor session cookies, redirects users to malicious sites, or installs backdoors for persistent access.

🟠

Likely Case

Attacker with Contributor access injects malicious JavaScript that steals administrator cookies when they view affected pages, potentially leading to site takeover.

🟢

If Mitigated

With proper user role management limiting Contributor accounts to trusted users only, impact is minimal as exploitation requires authenticated access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires Contributor-level access. The vulnerability is well-documented in security advisories with technical details.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 7.1.5

Vendor Advisory: https://wpscan.com/vulnerability/55cb43bf-7c8f-4df7-b4de-bf2bb1c2766d/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Shortcodes Ultimate Pro' and check if version is below 7.1.5. 4. Click 'Update Now' if available, or download version 7.1.5+ from vendor. 5. Activate the updated plugin.

🔧 Temporary Workarounds

Remove Contributor Role Access

all

Temporarily remove Contributor role permissions or disable Contributor accounts until patch is applied.

Use WordPress user management to modify roles

Disable Plugin

linux

Deactivate the Shortcodes Ultimate Pro plugin if immediate update isn't possible.

wp plugin deactivate shortcodes-ultimate-pro

🧯 If You Can't Patch

  • Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
  • Regularly audit and monitor user accounts with Contributor or higher privileges

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins, find Shortcodes Ultimate Pro and verify version is below 7.1.5.

Check Version:

wp plugin get shortcodes-ultimate-pro --field=version

Verify Fix Applied:

Confirm plugin version shows 7.1.5 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual shortcode modifications by Contributor users
  • Multiple failed login attempts followed by shortcode updates

Network Indicators:

  • Unexpected JavaScript payloads in HTTP responses containing shortcodes

SIEM Query:

source="wordpress.log" AND ("shortcodes-ultimate" OR "su_") AND user_role="contributor" AND action="updated"

🔗 References

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