CVE-2025-22637

4.3 MEDIUM

📋 TL;DR

This CSRF vulnerability in verkkovaraani Print PDF Generator and Publisher WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. It affects all WordPress sites using this plugin version 1.2.0 or earlier. Attackers could force administrators to change plugin settings or perform other administrative actions.

💻 Affected Systems

Products:
  • verkkovaraani Print PDF Generator and Publisher WordPress plugin
Versions: n/a through 1.2.0
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress administrator authentication for exploitation. All default configurations are vulnerable.

⚠️ 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 reconfigure the plugin to serve malicious PDFs, inject malicious content into generated PDFs, or disable security features, potentially leading to further compromise of the WordPress site.

🟠

Likely Case

Attackers trick administrators into changing plugin settings, potentially disrupting PDF generation functionality or enabling malicious behavior in generated documents.

🟢

If Mitigated

With proper CSRF protections and user awareness, the risk is minimal as it requires authenticated administrator interaction.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a crafted page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.2.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/nopeamedia/vulnerability/wordpress-print-pdf-generator-and-publisher-plugin-1-2-0-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Print PDF Generator and Publisher'. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version from WordPress repository.

🔧 Temporary Workarounds

Add CSRF Protection Headers

all

Implement Content Security Policy headers to restrict cross-origin requests

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'";

Disable Plugin

linux

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate print-pdf-generator-and-publisher

🧯 If You Can't Patch

  • Implement strict SameSite cookie policies for WordPress admin sessions
  • Educate administrators about CSRF risks and safe browsing practices

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Print PDF Generator and Publisher → Version. If version is 1.2.0 or earlier, you are vulnerable.

Check Version:

wp plugin get print-pdf-generator-and-publisher --field=version

Verify Fix Applied:

After update, verify plugin version shows 1.2.1 or later in WordPress admin plugins page.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed CSRF token validations from same IP
  • Unusual plugin configuration changes from unexpected user agents

Network Indicators:

  • Cross-origin requests to WordPress admin-ajax.php with plugin-specific actions
  • Requests with missing or invalid nonce tokens

SIEM Query:

source="wordpress.log" AND ("admin-ajax.php" AND "action=print_pdf_" AND NOT "_wpnonce=")

🔗 References

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