Stored Cross-Site Scripting Vulnerability in SemanticMediaWiki by Semantic MediaWiki
CVE-2026-116888

4.8MEDIUM

Key Information:

Vendor

Semanticmediawiki

Status
Semanticmediawiki
Vendor
CVE Published:
27 October 2026

What is CVE-2026-116888?

The vulnerability in SemanticMediaWiki allows users with the smw-schemaedit permission to inject script markup into the canonical_name property of a schema. This results in unescaped rendering of malicious JavaScript within Special:Browse headings, posing significant risks to all users, including administrators. Exploiting this vulnerability could lead to unauthorized access and compromised sessions.

Affected Version(s)

SemanticMediaWiki 3.2.0 < 7.3.1

SemanticMediaWiki 7.3.1

References

https://github.com/SemanticMediaWiki/SemanticMediaWiki/se...
vendor-advisory
https://www.vulncheck.com/advisories/semanticmediawiki-3....
third-party-advisory

CVSS V4

Score:
4.8
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
.