CVE-2026-116883
Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions
CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th
Semantic MediaWiki from 3.1.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated schema editors to inject HTML through schema descriptions. Attackers with the smw-schemaedit permission can save HTML that is passed unescaped to Html::rawElement() in HtmlBuilder, altering pages and targeting users who view the schema.
| CWE | CWE-79 |
| Vendor | semanticmediawiki |
| Product | semanticmediawiki |
| Published | Oct 27, 2026 |
| Last Updated | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
SemanticMediaWiki / SemanticMediaWiki
3.1.0 < 7.3.1
References
Credits
🔍 AlpetGexha