CVE-2026-104411BIT-ghost-2026-104411BIT-ghost-2026-105679CVE-2026-105679GHSA-gfjp-2p8f-94qv
Ghost 6.22.1 before 6.64.0 Stored XSS via Local Storage File Uploads
TryGhost GhostnpmApplications & CMS
CVSS
8.5HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.26%Chance of exploitation activity in the next 30 days, higher than 16% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
Ghost from 6.22.1 before 6.64.0 contains a stored cross-site scripting vulnerability that allows staff users to host scripts by uploading files served with extension-derived content types on the default local storage adapter. Attackers can upload script-bearing files to the site's domain to compromise other staff users' admin sessions.
Text from CVE List
Affected versions 3
- Ghostaffected: 6.22.1 before 6.64.0CVE List
- Ghostunaffected: 6.64.0CVE List
- ghost, npmfrom 6.22.1, fixed in 6.64.0OSV