CVE-2026-9233
Received Received - Intake

Authorization Bypass in Quiz and Survey Master WordPress Plugin

Publication date: 2026-06-27

Last updated on: 2026-06-27

Assigner: Wordfence

Description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 11.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to create, modify, and delete quiz output templates stored in the mlw_quiz_output_templates database table, including storing unsanitized HTML content such as arbitrary script tags.

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Meta Information

Published
2026-06-27
Last Modified
2026-06-27
Generated
2026-06-27
AI Q&A
2026-06-27
EPSS Evaluated
N/A
NVD
CVE-2026-9233
EUVD
EUVD-2026-39952

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
quiz_and_survey_master qsm to 11.1.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

The Quiz and Survey Master (QSM) plugin for WordPress has an authorization bypass vulnerability in all versions up to and including 11.1.4. This means the plugin does not properly check if a user is allowed to perform certain actions.

As a result, authenticated users with contributor-level access or higher can create, modify, and delete quiz output templates stored in the mlw_quiz_output_templates database table.

This includes the ability to store unsanitized HTML content, such as arbitrary script tags, which could lead to further security issues.

Impact Analysis

This vulnerability allows users with contributor-level access or above to manipulate quiz output templates without proper authorization.

They can insert unsanitized HTML and arbitrary scripts, potentially leading to cross-site scripting (XSS) attacks.

Such attacks could compromise the integrity of the website, affect other users, and lead to unauthorized actions or data exposure.

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