GitHub Advisoryadvisory · npm

GHSA-7524-3396-fqv3 tarteaucitron.js allows UI manipulation via unrestricted CSS injection

MEDIUM Published 2025-04-07 Modified 2025-04-07 Official page ↗
Aliases
CVE-2025-31138
Ecosystem
npm
Packages
tarteaucitronjs
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weaknesses
CWE-1021
Reviewed
2025-04-07

Affected packages

• npm tarteaucitronjs: < 1.20.1 → fixed in 1.20.1

Description

A vulnerability was identified in `tarteaucitron.js`, where user-controlled inputs for element dimensions (`width` and `height`) were not properly validated. This allowed an attacker with direct access to the site's source code or a CMS plugin to set values like `100%;height:100%;position:fixed;`, potentially covering the entire viewport and facilitating clickjacking attacks. Impact An attacker with high privileges could exploit this vulnerability to: • Overlay malicious UI elements on top of legitimate content, • Trick users into interacting with hidden elements (clickjacking), • Disrupt the intended functionality and accessibility of the website. Fix https://github.com/AmauriC/tarteaucitron.js/commit/25fcf828aaa55306ddc09cfbac9a6f8f126e2d07 The issue was resolved by enforcing strict validation and sanitization of user-provided CSS values to prevent unintended UI manipulation.

Related

Alias · CVE (1)

  • CVE-2025-31138 tarteaucitron.js is a compliant and accessible cookie banner. vulnerability

Weakness · CWE (1)

  • CWE-1021 Improper Restriction of Rendered UI Layers or Frames weakness

References