Ghost vulnerable to remote code execution in locale setting change
Impact
A vulnerability in an upstream library means an authenticated attacker can abuse locale input to execute arbitrary commands from a file that has previously been uploaded using the file upload functionality in the post editor.
Patches
Fixed in 5.2.3, all 5.x sites should update as soon as possible. Fixed in 4.48.2, all 4.x sites should update as soon as possible.
Workarounds
Patched versions of Ghost add validation to the locale input to prevent execution of arbitrary files. Updating Ghost is the quickest complete solution.
As a workaround, if for any reason you cannot update your Ghost instance, you can block the POST /ghost/api/admin/settings/ endpoint, which will also disable updating settings for your site.
For more information
If you have any questions or comments about this advisory:
- Email us at security@ghost.org
Credits
- devx00 - https://twitter.com/devx00
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | ghost | < 4.48.2, >= 5.0.0, < 5.2.3 | 4.48.2, 5.2.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L- Weakness (CWE)
-- Platform
- npm
- Package
ghost- Disclosed
- 17.06.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7v28-g2pq-ggg8 - CC BY 4.0
Vulnerability history: ghost
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 61
- First → latest
- 04.2021 10.2026
- Without a fix
- 3
- Exploited in attacks
- 0
Severity breakdown
- Critical 4
- High 16
- Medium 38
- Low 3
Disclosures per year
- 2021: 5
- 2022: 4
- 2023: 3
- 2024: 3
- 2025: 1
- 2026: 45
-
Ghost vulnerable to remote code execution in locale setting change this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.