CVE-2024-51641

7.1 HIGH

📋 TL;DR

This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in the Advanced PDF Generator WordPress plugin that can lead to Stored Cross-Site Scripting (XSS). Attackers can trick authenticated administrators into executing malicious actions, potentially injecting persistent scripts into vulnerable sites. WordPress sites using Advanced PDF Generator versions up to 0.4.0 are affected.

💻 Affected Systems

Products:
  • Advanced PDF Generator WordPress Plugin
Versions: n/a through 0.4.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin enabled and an authenticated administrator to trigger the CSRF.

⚠️ 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 inject malicious JavaScript that steals administrator credentials, redirects users to malicious sites, or performs unauthorized administrative actions on the WordPress site.

🟠

Likely Case

Attackers create phishing campaigns targeting site administrators, leading to script injection that could deface the site or steal session cookies.

🟢

If Mitigated

With proper CSRF protections and input validation, the attack chain is broken and no exploitation occurs.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

CSRF to XSS chain requires social engineering but is technically simple to execute once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 0.4.1 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/advanced-pdf-generator/wordpress-advanced-pdf-generator-plugin-0-4-0-csrf-to-stored-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Advanced PDF Generator. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 0.4.1+ from WordPress.org and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Advanced PDF Generator plugin until patched.

wp plugin deactivate advanced-pdf-generator

Implement CSRF Protection

all

Add WordPress nonce verification to plugin forms and AJAX requests.

🧯 If You Can't Patch

  • Restrict plugin access to trusted administrators only and implement strict user role permissions.
  • Deploy web application firewall (WAF) rules to block CSRF attempts and XSS payloads targeting the plugin endpoints.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Advanced PDF Generator for version number. If version is 0.4.0 or earlier, the site is vulnerable.

Check Version:

wp plugin get advanced-pdf-generator --field=version

Verify Fix Applied:

After update, verify plugin version shows 0.4.1 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with advanced-pdf-generator action parameters
  • Multiple failed CSRF token validations in WordPress debug logs

Network Indicators:

  • HTTP requests containing malicious script tags or JavaScript payloads targeting plugin endpoints

SIEM Query:

source="wordpress.log" AND ("advanced-pdf-generator" AND ("csrf" OR "xss" OR "script"))

🔗 References

📤 Share & Export