Stored Cross-Site Scripting in SemanticMediaWiki by Semantic MediaWiki
CVE-2026-116884

5.3MEDIUM

Key Information:

Vendor

Semanticmediawiki

Status
Semanticmediawiki
Vendor
CVE Published:
27 October 2026

What is CVE-2026-116884?

SemanticMediaWiki versions 5.0.0 through 7.3.1 are prone to a stored cross-site scripting vulnerability that arises from the improper handling of data-* attributes in ext.smw.tooltip.tippy.js. When allowHTML is enabled, editors can inject malicious payloads using attributes such as data-content, data-title, data-top, data-bottom, or data-theme. These payloads can execute JavaScript code when hovering over the crafted .smw-highlighter span, which poses a significant risk to both regular users and administrators.

Affected Version(s)

SemanticMediaWiki 5.0.0 < 7.3.1

SemanticMediaWiki 7.3.1

References

https://github.com/SemanticMediaWiki/SemanticMediaWiki/se...
vendor-advisory
https://www.vulncheck.com/advisories/semanticmediawiki-5....
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-use
.