CVE-2021-36905 MEDIUM

CVE-2021-36905: WordPress Quiz And Survey Master plugin <= 7.3.4 - Multiple Auth. Stored Cross-Site Scripting (XSS) vulnerabilities

Vendor Expresstech
Product Quiz And Survey Master (WordPress plugin)
Weakness CWE-79 · XSS
Published November 17, 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

Multiple Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerabilities in Quiz And Survey Master plugin <= 7.3.4 on WordPress.

Explanation of Vulnerability in Simple Terms

02Summary

The Quiz And Survey Master WordPress plugin versions up to 7.3.4 contain a stored cross-site scripting (XSS) vulnerability. An attacker with low-level user privileges can inject malicious scripts into quiz or survey content. When other users view the affected content, the scripts execute in their browsers, potentially allowing the attacker to steal session tokens, modify page content, or perform actions on their behalf.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute when other users view quizzes or surveys.

Potential impact on your site

04Site Impact

Visitors' browsers can be compromised when viewing affected quizzes; attackers can steal credentials or redirect users to malicious sites.

Conditions required to exploit

05Prerequisites

Attacker needs a low-privilege WordPress account (e.g., contributor or subscriber) and the victim must view the affected quiz or survey.

Key dates

06Disclosure timeline

November 17, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-65527 WordPress LIQUID SPEECH BALLOON plugin <= 1.2.5 - Cross Site Scripting (XSS) vulnerability CVE-2026-65538 WordPress Machete plugin <= 5.2 - Cross Site Scripting (XSS) vulnerability CVE-2026-65534 WordPress Custom links in Elementor Image Carousel plugin <= 1.1.1 - Cross Site Scripting (XSS) vulnerability CVE-2026-65446 WordPress Kali Forms plugin <= 2.4.18 - Cross Site Scripting (XSS) vulnerability CVE-2026-15333 Cozy Blocks <= 2.2.11 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'cozyCustomFont' Block Attribute