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OpenAdvisories
High · 7.3 CVE-2026-105649 BIT-ghost-2026-105649EUVD-2026-92756GHSA-8575-cr6v-7jh4

Ghost: Stored XSS via SVG Uploads Bypassing Sanitization

Published Oct 5, 2026 · Updated Oct 6, 2026 · Assigned by GitHub_M

Description

Ghost is a Node.js content management system. From 4.22.0 until 6.65.0, SVG media thumbnails and SVG images uploaded with a non-SVG file extension were stored without sanitization. This allowed any staff user, including Contributors, to host scripts on the site's domain, possibly resulting in compromise of other staff users' admin sessions. This issue is fixed in version 6.65.0.

Affected products

VendorProductAffectedFixed
TryGhost Ghost >= 4.22.0, < 6.65.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm ghost >= 4.22.0, < 6.65.0 6.65.0 GHSA-8575-cr6v-7jh4

References