CVE-2026-126559

MEDIUM 4.8

Semantic MediaWiki 4.2.0 before 7.4.1 Stored XSS via Special:FacetedSearch

CVSS Score

4.8

EPSS Score

0.0%

EPSS Percentile

0th

Semantic MediaWiki 4.2.0 before 7.4.1 contains a stored cross-site scripting vulnerability in OptionsBuilder::profiles() that allows users with the smw-schemaedit right to inject markup. Attackers can save FACETEDSEARCH_PROFILE_SCHEMA profile keys or labels that break out of option elements, executing scripts for every Special:FacetedSearch visitor including administrators.

CWE	CWE-79
Vendor	semanticmediawiki
Product	semanticmediawiki
Published	Nov 11, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

SemanticMediaWiki / SemanticMediaWiki

4.2.0 < 7.4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-cw86-j46r-2x7x github.com: https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/92999fc0de74324aaa35bfd3676cd4d145d2ac06 github.com: https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.4.1 github.com: https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/7.4.0/src/MediaWiki/Specials/FacetedSearch/OptionsBuilder.php#L27-L52 vulncheck.com: https://www.vulncheck.com/advisories/semantic-mediawiki-4.2.0-before-7.4.1-stored-xss-via-special-facetedsearch

Credits

AlpetGexha