Vulnerability · Published Jan 6, 2026 · Assigned by Wordfence
CVE-2025-9637Quiz and Survey Master (QSM) <= 10.3.1 - Missing Authorization to Unpublished, Private And Password-Protected Quiz Information Disclosure And Image Response Uploads
Medium 6.5
In plain English
A medium-severity missing authorization in Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker from expresstech. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Official description
The Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability and status checks on multiple functions in all versions up to, and including, 10.3.1. This makes it possible for unauthenticated attackers to view the details of unpublished, private, or password-protected quizzes, as well as submit file responses to questions from those quizzes, which allow file upload.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| expresstech | Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker | 0 – through 10.3.1 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/88a9abf4-62a9-4695-87e7-18ff0b0075e9?source=cve
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/classes/class-qmn-quiz-manager.php#L281
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/classes/class-qmn-quiz-manager.php#L1987
- https://plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/rest-api.php