CVE-2026-104414: Tryghost Ghost

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Ghost from 2.5.0 before 6.64.0 contains a stored cross-site scripting vulnerability that allows attackers to inject untrusted scripts into post content via oEmbed photo responses. Attackers can host malicious oEmbed photo responses so that embedding their URL stores scripts that run in the Ghost editor, published site, and newsletter emails, compromising staff admin sessions.

Affected products

• Tryghost Ghost: from 2.5.0, before 6.64.0 (fixed in 6.64.0)

Published 2026-10-02. Last modified 2026-10-02.