What is the CVSS score of CVE-2025-31138?

CVE-2025-31138 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.2%.

Which versions of Tarteaucitronjs are affected by CVE-2025-31138?

Organizations using tarteaucitron.js should be aware of moderate risk from CVE-2025-31138 rated CVSS 5.5. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-31138?

Within 30 days: Identify affected systems running tarteaucitron.js and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Tarteaucitronjs CVE-2025-31138

MEDIUM

Improper Restriction of Rendered UI Layers or Frames (CWE-1021)

2025-04-07 security-advisories@github.com

XSS Tarteaucitronjs

5.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.5 MEDIUM

AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

Patch released

Mar 28, 2026 - 18:35 nvd

Patch available

CVE Published

Apr 07, 2025 - 15:15 nvd

MEDIUM 5.5

DescriptionGitHub Advisory

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.

AnalysisAI

tarteaucitron.js is a compliant and accessible cookie banner. Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-1021. 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 products include: Amauri Tarteaucitronjs. Version information: prior to 1.20.1.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.