Vulnerability Details CVE-2026-116884
SemanticMediaWiki from 5.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability in ext.smw.tooltip.tippy.js that renders data-* attributes via innerHTML with allowHTML enabled. Editors can plant a .smw-highlighter span with a malicious data-content, data-title, data-top, data-bottom, or data-theme attribute to execute JavaScript when viewers, including administrators, hover it.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 4.5%
CVSS Severity
CVSS v3 Score 6.1
References
Products affected by CVE-2026-116884
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cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*