Is CVE-2026-105649 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-105649?

CVE-2026-105649 has a CVSS v3 severity of HIGH (7.3).

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CVE-2026-105649

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.