CVE-2026-14824
Received Received - Intake

Stored XSS in Quiz and Survey Master WordPress Plugin

Vulnerability report for CVE-2026-14824, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-04

Last updated on: 2026-08-04

Assigner: WPScan

Description

The Quiz and Survey Master (QSM) WordPress plugin before 11.2.2 does not properly escape a question setting before outputting it into an unquoted HTML attribute, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes in the browser of any user viewing the affected quiz.

CVSS Scores

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Meta Information

Published
2026-08-04
Last Modified
2026-08-04
Generated
2026-08-04
AI Q&A
2026-08-04
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
quiz_and_survey_master qsm to 11.2.2 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

The Quiz and Survey Master (QSM) WordPress plugin before version 11.2.2 has a vulnerability where a question setting is not properly escaped before being output into an unquoted HTML attribute. This allows users with contributor-level access or higher to inject arbitrary JavaScript code. When other users view the affected quiz, the injected script executes in their browsers.

Detection Guidance

Check if the Quiz and Survey Master (QSM) WordPress plugin version is below 11.2.2. Inspect plugin files for improperly escaped question settings in HTML output. Look for JavaScript injection attempts in quiz content or settings.

Impact Analysis

If you use the vulnerable version of the QSM plugin, attackers with contributor-level access could inject malicious JavaScript into quizzes. This could lead to unauthorized actions on behalf of users, data theft, or defacement of your WordPress site. Visitors viewing the quiz may have their sessions compromised or be redirected to malicious sites.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, which may violate GDPR's data protection requirements or HIPAA's privacy rules. If user data is compromised due to this flaw, organizations could face legal penalties, fines, or reputational damage for failing to protect sensitive information.

Mitigation Strategies

Update the Quiz and Survey Master plugin to version 11.2.2 or later immediately. Review and remove any suspicious JavaScript code in quizzes or surveys. Restrict contributor-level access to trusted users only.

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EPSS Chart