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CVE-2025-31138

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Date: April 7, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Improper Restriction of Rendered UI Layers or Frames

CWE-1021

Top Fix

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Upgrade Version

Upgrade to version tarteaucitronjs - 1.20.1;tarteaucitronjs - 1.20.1;tarteaucitronjs - 1.20.1;https://github.com/AmauriC/tarteaucitron.js.git - v1.20.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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