Quiz and Survey Master (QSM) <= 10.3.1 - Missing Authorization to Unpublished, Private And Password-Protected Quiz Information Disclosure And Image Response Uploads

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-9637
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-06 10:15:48 UTC
Updated2026-09-30 23:10:00 UTC
DescriptionThe 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 This makes it possible for unauthenticated attackers to view the details of unpublished, private, or password-protected quizzes, as well as submit file responses to questions from those quizzes, which allow file upload.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

EPSS: 0.002610000 probability, percentile 0.161160000 (date 2026-10-01)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Expresstech Quiz And Survey Master All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Expresstech Quiz And Survey Master QSM Easy Quiz And Survey Maker affected 10.3.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/rest-api.php [email protected] plugins.trac.wordpress.org Product
plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/classes/class-qmn-qu... [email protected] plugins.trac.wordpress.org Product
plugins.trac.wordpress.org/browser/quiz-master-next/tags/10.2.6/php/classes/class-qmn-qu... [email protected] plugins.trac.wordpress.org Product
www.wordfence.com/threat-intel/vulnerabilities/id/88a9abf4-62a9-4695-87e7-18ff0... [email protected] www.wordfence.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Rahul Sreenivasan (en)

Additional Advisory Data

SourceTimeEvent
CNA2025-08-19T00:00:00.000ZDiscovered
CNA2026-01-05T20:24:52.000ZDisclosed

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