CVE-2026-126559mediumCWE-79

CVE-2026-126559: medium-severity vulnerability in SemanticMediaWiki

Semantic MediaWiki 4.2.0 before 7.4.1 Stored XSS via Special:FacetedSearch

Published

Follow this CVE+ Monitor SemanticMediaWiki

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

10Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.8
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Affected products
SemanticMediaWiki · SemanticMediaWiki
Related CVEs — SemanticMediaWiki

In the same product, most dangerous first.

CVE-2026-116878HIGHSemantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via Special:PropertyLabelSimilarityEPSS 0.4%CVE-2025-61682HIGHSemantic MediaWiki vulnerable to stored XSS through wikitext via improper use of non-reserved data attributesEPSS 0.4%CVE-2026-116871HIGHSemantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:AskEPSS 0.4%CVE-2026-116877HIGHSemantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via #set_recurring_eventEPSS 0.4%CVE-2026-116872HIGHSemantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact FiltersEPSS 0.4%CVE-2026-77616MEDIUMSemantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination tokenEPSS 0.3%