CVE-2025-67469

8.8 HIGH

📋 TL;DR

This CSRF vulnerability in kubiq PDF Thumbnail Generator allows attackers to trick authenticated WordPress administrators into performing unintended actions. Attackers can create malicious web pages that, when visited by logged-in administrators, trigger unauthorized plugin operations. This affects all WordPress sites using PDF Thumbnail Generator version 1.4 or earlier.

💻 Affected Systems

Products:
  • kubiq PDF Thumbnail Generator WordPress Plugin
Versions: <= 1.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with vulnerable versions are affected regardless of configuration.

⚠️ 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 modify plugin settings, delete thumbnails, or potentially chain with other vulnerabilities to gain administrative access or execute arbitrary code.

🟠

Likely Case

Attackers trick administrators into changing plugin configurations, disabling functionality, or performing unwanted administrative actions within the plugin.

🟢

If Mitigated

With proper CSRF protections and user awareness, impact is limited to temporary configuration changes that can be reverted.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires social engineering to trick authenticated administrators into visiting malicious pages.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.5 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/pdf-thumbnail-generator/vulnerability/wordpress-pdf-thumbnail-generator-plugin-1-4-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 'PDF Thumbnail Generator'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.5+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the plugin until patched to prevent exploitation.

wp plugin deactivate pdf-thumbnail-generator

CSRF Protection via .htaccess

linux

Add CSRF protection headers at web server level.

Header set X-Frame-Options "DENY"
Header set Content-Security-Policy "frame-ancestors 'none'"

🧯 If You Can't Patch

  • Implement strict SameSite cookie policies and CSRF tokens at application level
  • Educate administrators about phishing risks and require manual confirmation for sensitive actions

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > PDF Thumbnail Generator version number

Check Version:

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

Verify Fix Applied:

Verify plugin version is 1.5 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with pdf-thumbnail-generator actions
  • Multiple failed CSRF token validations

Network Indicators:

  • Cross-origin requests to WordPress admin endpoints from unexpected domains

SIEM Query:

source="wordpress.log" AND "pdf-thumbnail-generator" AND "admin-ajax.php" AND status=200

🔗 References

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