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Vulnerabilities CVE-2026-49977

CVE-2026-49977

Medium
Open
TLP:CLEAR

tarteaucitron.js: data-cookie attribute can be used to delete arbitrary cookies

NVD CVE.org
Critical Infrastructure

AI Analysis

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Description

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.

Details

CVSS Score
4.3
EPSS Score
0.20%

10.1th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Confidence
90%
Published
Jul 17, 2026
Last Modified
Jul 20, 2026
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