Vulnerability · Published Apr 7, 2025 · Assigned by GitHub_M
CVE-2025-31475tarteaucitron.js allows prototype pollution via custom text injection
Medium 5.5
In plain English
A medium-severity prototype pollution 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 0.4% (higher than 29% 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 the addOrUpdate function, used for applying custom texts, did not properly validate input. This allowed an attacker with direct access to the site's source code or a CMS plugin to manipulate JavaScript object prototypes, leading to potential security risks such as data corruption or unintended code execution. An attacker with high privileges could exploit this vulnerability to modify object prototypes, affecting core JavaScript behavior, cause application crashes or unexpected behavior, or potentially introduce further security vulnerabilities depending on the application's architecture. This vulnerability is fixed in 1.20.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | tarteaucitronjs | 1.20.1 | GHSA-4hwx-xcc5-2hfc |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AmauriC | tarteaucitron.js | < 1.20.1 |
Weakness: CWE-1321 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N