CVE-2026-116888

SemanticMediaWiki 3.2.0 before 7.3.1 Stored XSS via Special:Browse Group Heading

MEDIUM
5.4
CVSS Score
Published: October 27, 2026 at 10:23 AM UTC
Updated: October 31, 2026 at 03:17 AM UTC
1 product affected across 1 vendorSemantic MediaWiki

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.1%
SSVC
PoC

Description

SemanticMediaWiki from 3.2.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with the smw-schemaedit right to inject markup through an unescaped property group schema canonical_name. Attackers can save a schema whose canonical_name holds script markup, which GroupFormatter renders unescaped in Special:Browse headings, executing JavaScript in viewers' sessions including administrators.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.2.0 ≤ v < 7.3.1
Vendor states this is fixed in 7.3.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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