CVE-2026-116884

SemanticMediaWiki 5.0.0 before 7.3.1 Stored XSS via Tooltip Module data-* Attributes

State: Published
Severity: 5.3 Medium
Published: Oct 27, 2026
Updated: Oct 27, 2026
Reserved: Oct 27, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N	VulnCheck
3.1	6.1 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	VulnCheck

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
SemanticMediaWikiSemanticMediaWiki	5.0.0 to before 7.3.1Affected 7.3.1Not affected

References

GitHub Security Advisory (GHSA-4wj6-wmjp-pmhh)vendor-advisory
VulnCheck Advisory: SemanticMediaWiki 5.0.0 before 7.3.1 Stored XSS via Tooltip Module data-* Attributesthird-party-advisory

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