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CVE-2026-111903 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains a stored cross-site scripting vulnerability in SvgSanitizer that allows users with FAQ_EDIT permission to bypass sanitization using XML DTD custom entities. Attackers can upload an SVG defining an entity that expands to javascript in an anchor href, executing script when viewers click it to hijack admin sessions.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j3v5-p957-w6gq	CISA-ADP	AdvisoryVendor
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j3v5-p957-w6gq	[email protected]	AdvisoryVendor
https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-stored-xss-via-svg-dtd-entity-bypass	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
phpMyFAQ	<= 4.2.0-alpha (semver) 4.2.0-alpha, < 4.2.0-beta (semver)
CPE cpe:2.3:a:phpmyfaq:phpmyfaq:::::::: Remediation Upgrade: 4.2.0-betamoderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 19, 2026	CVE Modified	CISA-ADP
Oct 17, 2026	New CVE Received	[email protected]