Is CVE-2026-116884 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116884?

CVE-2026-116884 has a CVSS v3 severity of MEDIUM (6.1).

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CVE-2026-116884

Description

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.