CVE-2026-116883: medium-severity vulnerability in SemanticMediaWiki
Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.1%
Semantic MediaWiki from 3.1.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated schema editors to inject HTML through schema descriptions. Attackers with the smw-schemaedit permission can save HTML that is passed unescaped to Html::rawElement() in HtmlBuilder, altering pages and targeting users who view the schema.
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 · SemanticMediaWikiRelated CVEs — SemanticMediaWiki
In the same product, most dangerous first.
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-2026-116878HIGHSemantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via Special:PropertyLabelSimilarityEPSS 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%CVE-2026-116877HIGHSemantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via #set_recurring_eventEPSS 0.3%