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This CVE targets a vulnerability in the Drupal ‘Simple multi step form’ module. The flaw is an improper neutralization of input, leading to a Stored Cross-Site Scripting (XSS) attack. The module fails to adequately sanitize user input submitted through multi-step forms before rendering it on subsequent pages or upon final submission. An attacker can craft a malicious payload, such as a JavaScript script, within a form field. When an administrator or another user views the page where the unsanitized input is displayed, the malicious script is executed in their browser. This allows the attacker to perform actions on behalf of the victim user, potentially hijacking their session or defacing the website. The vulnerability is present in all versions of the module from its inception up to, but not including, version 2.0.0.
Platform: Drupal
Version: <2.0.0
Vulnerability : Stored XSS
Severity: Low
date: 2025-11-18
Prediction: Patch 2025-11-25
What Undercode Say:
curl -s "https://example.com/drupal/multi-step-form" | grep -i "script"
<script>alert('XSS')</script>
How Exploit:
1. Attacker submits malicious script in form.
2. Payload is stored unsanitized.
3. Admin views submissions.
4. Script executes in admin context.
Protection from this CVE
Update to version 2.0.0.
Implement output sanitization.
Use Content Security Policy.
Impact:
Session hijacking.
Site defacement.
Privilege escalation.
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Sources:
Reported By: github.com
Extra Source Hub:
Undercode
