Vulnerability · Published Apr 7, 2025 · Assigned by GitHub_M
CVE-2025-31138tarteaucitron.js allows UI manipulation via unrestricted CSS injection
Medium 5.5
In plain English
A medium-severity security flaw in tarteaucitron.js from AmauriC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
tarteaucitron.js is a compliant and accessible cookie banner. A vulnerability was identified in tarteaucitron.js prior to 1.20.1, 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. 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), or disrupt the intended functionality and accessibility of the website. This vulnerability is fixed in 1.20.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | tarteaucitronjs | 1.20.1 | GHSA-7524-3396-fqv3 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AmauriC | tarteaucitron.js | < 1.20.1 |
Weakness: CWE-1021 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N