Vulnerability Details CVE-2026-116887
Semantic MediaWiki from 3.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject HTML through Keyword-typed property values rendered unescaped on Special:Browse. Attackers can annotate a Keyword property with an event-handler payload that executes JavaScript in viewers' sessions, including administrators, to read tokens and perform actions.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 3.3%
CVSS Severity
CVSS v3 Score 5.4
References
Products affected by CVE-2026-116887
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.0.0
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.0.1
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.0.2
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.0
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.1
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.2
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.3
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.4
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.5
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.1.6
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.2.0
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.2.1
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.2.2
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:3.2.3
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:4.0.0
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:4.0.1
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:4.0.2
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:4.1.0