CVE-2024-9019

6.4 MEDIUM

📋 TL;DR

This vulnerability allows authenticated attackers with contributor-level access or higher to inject malicious scripts into WordPress pages using the SecuPress plugin's shortcode. When users visit compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using SecuPress Free plugin versions up to 2.2.5.3 are affected.

💻 Affected Systems

Products:
  • SecuPress Free — WordPress Security
Versions: All versions up to and including 2.2.5.3
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with SecuPress Free 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, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users.

🟠

Likely Case

Attackers with contributor access inject malicious scripts that steal user session cookies or redirect users to phishing pages.

🟢

If Mitigated

With proper input validation and output escaping, the vulnerability is eliminated, preventing script injection entirely.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access (contributor or higher). The vulnerability is in a shortcode handler with insufficient sanitization.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.2.5.4 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/secupress/trunk/free/common.php#L238

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find SecuPress Free plugin. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress plugin repository and manually update.

🔧 Temporary Workarounds

Disable SecuPress plugin

linux

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate secupress

Remove contributor shortcode permissions

all

Restrict contributor-level users from using shortcodes via role management.

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads in shortcode attributes.
  • Regularly audit user accounts and limit contributor privileges to trusted users only.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > SecuPress Free version. If version is 2.2.5.3 or lower, you are vulnerable.

Check Version:

wp plugin get secupress --field=version

Verify Fix Applied:

After update, verify plugin version is 2.2.5.4 or higher in WordPress admin plugins page.

📡 Detection & Monitoring

Log Indicators:

  • Unusual shortcode usage in post/page edits by contributor users
  • Multiple failed login attempts followed by successful contributor login

Network Indicators:

  • Unexpected script tags in HTTP responses containing secupress_check_ban_ips_form

SIEM Query:

source="wordpress.log" AND "secupress_check_ban_ips_form" AND ("script" OR "onerror" OR "javascript:")

🔗 References

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