CVE-2024-12529

6.4 MEDIUM

📋 TL;DR

This stored XSS vulnerability in the brodos.net Onlineshop Plugin for WordPress allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. When users visit compromised pages, the scripts execute in their browsers, potentially stealing session cookies or redirecting to malicious sites. All WordPress sites using this plugin up to version 2.0.2 are affected.

💻 Affected Systems

Products:
  • brodos.net Onlineshop Plugin for WordPress
Versions: All versions up to and including 2.0.2
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled. Contributor-level authentication is required for exploitation.

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

🟠

Likely Case

Attackers with contributor accounts inject malicious scripts to steal user session cookies or display unwanted content, potentially compromising user accounts.

🟢

If Mitigated

With proper access controls limiting contributor accounts and regular monitoring, impact is limited to minor content manipulation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires contributor-level WordPress access. The vulnerability is in the BrodosCategory shortcode attribute handling.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.0.3 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/brodos-net-onlineshop

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'brodos.net Onlineshop Plugin'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 2.0.3+ from WordPress plugin repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable shortcode

all

Remove or disable the BrodosCategory shortcode from posts/pages

Edit WordPress posts/pages and remove [BrodosCategory] shortcode instances

Restrict contributor capabilities

all

Limit contributor accounts from publishing or editing published content

Use WordPress role management plugins to modify contributor capabilities

🧯 If You Can't Patch

  • Remove the brodos.net Onlineshop Plugin entirely if not essential
  • Implement strict Content Security Policy (CSP) headers to mitigate XSS impact

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for brodos.net Onlineshop Plugin version 2.0.2 or earlier

Check Version:

wp plugin list --name='brodos-net-onlineshop' --field=version (if WP-CLI installed)

Verify Fix Applied:

Verify plugin version is 2.0.3 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual post/page edits by contributor accounts
  • Suspicious shortcode modifications in content

Network Indicators:

  • Unexpected JavaScript execution from WordPress pages
  • Suspicious outbound connections from user browsers

SIEM Query:

source="wordpress" AND (event="post_modified" OR event="page_modified") AND user_role="contributor" AND content CONTAINS "[BrodosCategory"

🔗 References

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