Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. Prior to version 7.2.0, `sep` was inserted verbatim into HTML cell joins. This made it possible to inject HTML through the separator value.
Version 7.2.0 fixes the issue.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
semanticmediawiki:semanticmediawiki
References 2
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA…
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-7xv3-gf2g-498h
https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0
https://github.com/SemanticMediaWiki/SemanticMediaWiki/releases/tag/7.2.0