CVE-2026-105644 Ghost: Stored XSS via SVG Files in Content Imports
Attackers can execute scripts in admin sessions by uploading malicious SVG files during content imports, potentially compromising staff accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-105644?
CVE-2026-105644 is a medium-severity cross-site scripting vulnerability in TryGhost Ghost, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, SVG images included in content imports were stored without sanitization. An attacker who convinced an Administrator to import a crafted file could host scripts on the site's domain, possibly resulting in compromise of staff users' admin sessions. This issue is fixed in version 6.67.0.
Which versions are affected by CVE-2026-105644?
3 open source packages ship an affected version, including ghost.
| Package | Affected | Fixed in |
|---|---|---|
ghost Bitnami | From 4.0.0 | 6.67.0 |
ghost npm | From 4.0.0 | 6.67.0 |
ghost npm | From 4.0.0 | 6.67.0 |
How do I fix CVE-2026-105644?
Upgrade ghost to 6.67.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-105644 being exploited?
There is no known exploitation of CVE-2026-105644 in the wild and no public exploit code.
Sources
Also known as BIT-ghost-2026-105644, GHSA-hqq2-xqr2-fmx2, MINI-449p-m85j-h9gw.