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CVE-2026-116883medium4.8

Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions

Impact

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.

Source excerpt · VulnCheck

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

SemanticMediaWiki · SemanticMediaWiki

Other versions: unaffected

Version / rangeSource status
3.1.0 to before 7.3.1affected
7.3.1unaffected
VulnCheck version evidence

Original source description

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.

References