WordPress Quiz And Survey Master plugin <= 11.2.7 - PHP Object Injection vulnerability

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104392
StatePUBLISHED
AssignerPatchstack
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-09 13:17:08 UTC
Updated2026-10-09 21:17:02 UTC
DescriptionDeserialization of Untrusted Data vulnerability in ExpressTech Quiz And Survey Master quiz-master-next allows Object Injection.This issue affects Quiz And Survey Master: from n/a through 11.2.7.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

EPSS: 0.002880000 probability, percentile 0.196340000 (date 2026-10-11)

Problem Types: CWE-502 | CWE-502 Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ExpressTech Quiz And Survey Master affected 11.2.7 custom Not specified

References

ReferenceSourceLinkTags
patchstack.com/database/wordpress/plugin/quiz-master-next/vulnerability/word... [email protected] patchstack.com
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: Ananda Dhakal (Patchstack) (en)

Additional Advisory Data

Solutions

CNA: Update the WordPress Quiz And Survey Master plugin to the latest available version (at least 11.2.8).

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