CSRF Vulnerability in Drupal Theme Negotiation by Rules

Publication date: 2026-03-25

Last updated on: 2026-03-31

Assigner: Drupal.org

Description

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-25

Last Modified

2026-03-31

Generated

2026-07-06

AI Q&A

2026-03-25

EPSS Evaluated

2026-07-05

NVD

CVE-2026-3211

EUVD

EUVD-2026-15467

Affected Vendors & Products

Vendor	Product	Version / Range
webikon	theme_negotiation_by_rules	to 1.2.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-352	The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is a Cross-Site Request Forgery (CSRF) issue found in the Drupal Theme Negotiation by Rules module. It allows an attacker to trick a user into performing unwanted actions on a web application in which they are authenticated, without their consent.

Impact Analysis

The impact of this vulnerability is that an attacker could potentially execute unauthorized actions on behalf of an authenticated user within the Drupal site using the Theme Negotiation by Rules module. This could lead to changes in the site's theme settings or other unintended behaviors controlled by this module.

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