MEDIUM 5.0 GitHub
CVE-2026-70588
Ghost: Cross-Site Scripting in Universal Import
### Impact
The Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content.
### Vulnerable versions
This vulnerability is present in Ghost from v5.26.0 up to v6.54.0.
### Patches
v6.54.1 contains a fix for this issue.
### How to update
For self-hosters using Docker, find [Docker's official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/do
Affected Products
- npm/ghost >= 5.26.0, < 6.54.1
References
- https://github.com/advisories/GHSA-2gx6-7gx2-wwcf
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-2gx6-7gx2-wwcf
- https://github.com/TryGhost/Ghost/pull/29635
- https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e
This medium severity vulnerability with a CVSS score of 5.0 was published on 2026-08-04 via GitHub. Affected: npm/ghost >= 5.26.0, < 6.54.1.
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