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CVE-2025-31476— tarteaucitron.js allows url scheme injection via unfiltered inputs

Quick assessment

Affected
AmauriC tarteaucitron.js
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

tarteaucitron.js是Amauri CHAMPEAUX个人开发者的一个 cookie 管理器。 tarteaucitron.js存在跨站脚本漏洞，该漏洞源于URL验证不足，可能导致任意JavaScript执行。

CVSS 4.8 · Medium EPSS 0.33% · P26

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-31476

Vulnerability Information
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Vulnerability Title
tarteaucitron.js allows url scheme injection via unfiltered inputs
Source: CVE Program / CVE List V5
Vulnerability Description
tarteaucitron.js is a compliant and accessible cookie banner. A vulnerability was identified in tarteaucitron.js, allowing a user with high privileges (access to the site's source code or a CMS plugin) to enter a URL containing an insecure scheme such as javascript:alert(). Before the fix, URL validation was insufficient, which could allow arbitrary JavaScript execution if a user clicked on a malicious link. An attacker with high privileges could insert a link exploiting an insecure URL scheme, leading to execution of arbitrary JavaScript code, theft of sensitive data through phishing attacks, or modification of the user interface behavior. This vulnerability is fixed in 1.20.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
tarteaucitron.js 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
tarteaucitron.js是Amauri CHAMPEAUX个人开发者的一个 cookie 管理器。 tarteaucitron.js存在跨站脚本漏洞，该漏洞源于URL验证不足，可能导致任意JavaScript执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AmauriC tarteaucitron.js < 1.20.1 -

II. Public POCs for CVE-2025-31476

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III. Intelligence Information for CVE-2025-31476

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Patches & Fixes for CVE-2025-31476 (1)

Same Patch Batch · AmauriC · 2025-04-07 · 3 CVEs total

CVE-2025-31475 5.5 MEDIUM tarteaucitron.js allows prototype pollution via custom text injection
CVE-2025-31138 5.5 MEDIUM tarteaucitron.js allows UI manipulation via unrestricted CSS injection

IV. Related Vulnerabilities

Same product: tarteaucitron.js
Same vendor: AmauriC
Same weakness: CWE-79

V. Comments for CVE-2025-31476

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