CVE-2021-36867 MEDIUM

CVE-2021-36867: WordPress Psychological tests & quizzes plugin <= 0.21.19 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Vendor Alexander Ustimenko
Product Psychological tests & quizzes (WordPress plugin)
Weakness CWE-79 · XSS
Published April 26, 2022
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Stored Cross-Site Scripting (XSS) vulnerability in Alexander Ustimenko's Psychological tests & quizzes plugin <= 0.21.19 on WordPress possible for users with contributor or higher user rights.

Explanation of Vulnerability in Simple Terms

02Summary

The Psychological tests & quizzes WordPress plugin through version 0.21.19 contains a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users, including site administrators. The vulnerability requires user interaction—typically a victim clicking a link or visiting a page containing the injected content. The impact extends beyond the plugin itself due to scope change.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers, potentially stealing session tokens or performing actions as those users.

Potential impact on your site

04Site Impact

Authenticated attackers can compromise admin accounts or steal sensitive data from site visitors through script injection.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege WordPress account and the victim must visit a page containing the injected payload.

Key dates

06Disclosure timeline

April 26, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

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