Is CVE-2026-104413 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-104413?

CVE-2026-104413 has a CVSS v3 severity of HIGH (7.3).

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CVE-2026-104413

Description

Ghost from 5.94.0 before 6.64.0 contains a stored cross-site scripting vulnerability that allows staff users, including Contributors, to host arbitrary HTML by abusing bookmark card image fetching. Attackers can create bookmark cards that store non-image files from external websites as icons or thumbnails to compromise other staff users' admin sessions.