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Semantic MediaWiki affected by Special:Ask table `sep` parameter reflected XSS

CVSS 3.1 6.1 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-77607

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-77607

Published

SemanticMediaWiki

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "SemanticMediaWiki",
                    "product": "SemanticMediaWiki",
                    "versions": [
                        {
                            "version": "< 7.2.0",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 13 Nov 03:01 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current