Ghost: Paid gift memberships obtainable at minimal cost via the donations feature
Impact
A vulnerability in Ghost's public donation checkout flow allowed an unauthenticated attacker to obtain full paid gift memberships for a minimal payment. No customer or member data was exposed, and the issue could not be used to steal money from a site or its members.
Vulnerable versions
This vulnerability is present in Ghost from v6.27.0 up to v6.43.1.
Patches
v6.44.0 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker’s official Ghost image on Docker Hub and follow the documentation on updating a Docker-based Ghost instance.
For self-hosters using Ghost-CLI, see the documentation for updating Ghost to the latest version.
Workarounds
If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied.
References
Ghost thanks sane100400 and p4p3r for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email Ghost at security@ghost.org.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | ghost | >= 6.27.0, < 6.44.0 | 6.44.0 |
References
- https://github.com/TryGhost/Ghost/security/advisories/GHSA-xm43-3m56-w3wf
- https://nvd.nist.gov/vuln/detail/CVE-2026-59817
- https://github.com/TryGhost/Ghost/pull/28351
- https://github.com/TryGhost/Ghost/pull/28352
- https://github.com/TryGhost/Ghost/commit/cab716cd015ac04b7ee50c7a405478d97bc7b1e0
- https://github.com/TryGhost/Ghost/commit/ee7b991b466a7849c70f9d1caed8e491ee4113c6
- https://github.com/TryGhost/Ghost
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-472, CWE-639- Platform
- npm
- Package
ghost- Disclosed
- 04.08.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-xm43-3m56-w3wf - 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
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Ghost: Paid gift memberships obtainable at minimal cost via the donations feature this entry
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