CVE-2021-36889 LOW

CVE-2021-36889: WordPress tarteaucitron.js – Cookies legislation & GDPR plugin <= 1.6 - Multiple Stored Authenticated Cross-Site Scripting (XSS) vulnerabilities

Vendor Tarteaucitron
Product tarteaucitron.js – Cookies legislation & GDPR (WordPress plugin)
Weakness CWE-79 · XSS
Published December 20, 2021
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

3.4/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Multiple Stored Authenticated Cross-Site Scripting (XSS) vulnerabilities were discovered in tarteaucitron.js – Cookies legislation & GDPR WordPress plugin (versions <= 1.6).

Explanation of Vulnerability in Simple Terms

02Summary

The tarteaucitron.js WordPress plugin version 1.6 and earlier contains a cross-site scripting (XSS) vulnerability in how it handles user input. An authenticated administrator with high privileges can inject malicious scripts that affect other users' browsers when they interact with the plugin's interface. The vulnerability requires user interaction to trigger and has limited scope, but can compromise site integrity.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they interact with the plugin.

Potential impact on your site

04Site Impact

An admin account holder could inject scripts affecting other site users, potentially stealing session tokens or modifying site content.

Conditions required to exploit

05Prerequisites

Attacker must be an authenticated administrator (high privileges) and the victim must click a link or visit a page containing the malicious payload.

Key dates

06Disclosure timeline

December 20, 2021 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-13425 Database for CF7 <= 1.2.6 - Unauthenticated Stored Cross-Site Scripting via Array Form Field Values CVE-2026-65440 WordPress GetGenie plugin <= 4.4.3 - Cross Site Scripting (XSS) vulnerability CVE-2026-15393 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute CVE-2026-65447 WordPress Contest Gallery plugin <= 30.0.6 - Cross Site Scripting (XSS) vulnerability CVE-2026-65764 Joomla Extension - phoca.cz - Reflected XSS vulnerability in Phoca Maps 5.0.0-6.1.1