CVE-2025-31475

mediumpriority · track · 26EPSS 0.004 · 29 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (29th) EPSS

CVSS 6.6 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

tarteaucitron.js is a compliant and accessible cookie banner. A vulnerability was identified in tarteaucitron.js prior to 1.20.1, where the addOrUpdate function, used for applying custom texts, did not properly validate input. This allowed an attacker with direct access to the site's source code or a CMS plugin to manipulate JavaScript object prototypes, leading to potential security risks such as data corruption or unintended code execution. An attacker with high privileges could exploit this vulnerability to modify object prototypes, affecting core JavaScript behavior, cause application crashes or unexpected behavior, or potentially introduce further security vulnerabilities depending on the application's architecture. This vulnerability is fixed in 1.20.1.

cvss

Technical severity, 0–10. One row per scoring source.

6.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:Lprimary · NVD / NIST USexploitability 2.3 · impact 3.7

v3.15.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:Nsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:Nsecondary · security-advisories@github.comexploitability 2.3 · impact 2.7

v3.15.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:Nsecondary · OSV

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1321USCWE-1321US

affected products (3)

Products and version ranges known to be affected.

tarteaucitron.js≤ < 1.20.1enisa_euvdEU
amauri tarteaucitronjs< 1.20.1nvdUScpe:2.3:a:amauri:tarteaucitronjs:*:*:*:*:*:*:*:*
npm tarteaucitronjs< 1.20.1osvUSpkg:npm/tarteaucitronjs

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-4hwx-xcc5-2hfctarteaucitron.js allows prototype pollution via custom text injection2025-04-07ghsa · osvUS
A vulnerability was identified in `tarteaucitron.js`, where the `addOrUpdate` function, used for applying custom texts, did not properly validate input. This allowed an attacker with direct access to the site's source code or a CMS plugin to manipulate JavaScript object prototypes, leading to potential security risks such as data corruption or unintended code execution. ## Impact An attacker with high privileges could exploit this vulnerability to: - Modify object prototypes, affecting core JavaScript behavior, - Cause application crashes or unexpected behavior, - Potentially introduce further security vulnerabilities depending on the application's architecture. ## Fix https://github.com/AmauriC/tarteaucitron.js/commit/74c354c413ee3f82dff97a15a0a43942887c2b5b The issue was resolved by ensuring that user-controlled inputs cannot modify JavaScript object prototypes.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2025-04-07modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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