CVE-2026-49977

tarteaucitron.js is a compliant and accessible cookie banner. Prior to 1.33.0, tarteaucitron.cookie.purge() is called on any element with the purgeBtn class and does not check whether the element is a legitimate tarteaucitron button or whether the cookie corresponds to a service handled by tarteaucitron. If an attacker can write HTML with data attributes, an element with data-cookie can silently delete a non-HttpOnly cookie with a known name when clicked by a user. This issue is fixed in version 1.33.0.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/AmauriC/tarteaucitron.js/commit/24b5464400ae2ff1ad96a092c629b9d632b9cc93
https://github.com/AmauriC/tarteaucitron.js/releases/tag/v1.33.0
https://github.com/AmauriC/tarteaucitron.js/security/advisories/GHSA-jxj7-g6gm-49j7
https://www.drupal.org/sa-contrib-2026-040

Configurations

No configuration.

History

24 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) tarteaucitron.js es un banner de cookies conforme y accesible. Antes de 1.33.0, tarteaucitron.cookie.purge() se llama en cualquier elemento con la clase purgeBtn y no verifica si el elemento es un botón legítimo de tarteaucitron o si la cookie corresponde a un servicio gestionado por tarteaucitron. Si un atacante puede escribir HTML con atributos de datos, un elemento con data-cookie puede eliminar silenciosamente una cookie no HttpOnly con un nombre conocido cuando un usuario hace clic en él. Este problema está solucionado en la versión 1.33.0.

Information

Published : 2026-07-17 21:17

Updated : 2026-10-24 20:10

NVD link : CVE-2026-49977

Mitre link : CVE-2026-49977

CVE.ORG link : CVE-2026-49977

JSON object : View

Products Affected

No product.

CWE

CWE-285

Improper Authorization

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