# CVE-2026-59817

## Summary

- **CVE ID:** CVE-2026-59817
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **CWE:** CWE-472, CWE-639
- **Published:** Jul 9, 2026
- **Last Modified:** Jul 14, 2026

## Description

Ghost is a Node.js content management system. From 6.27.0 before 6.44.0, Ghost's public donation checkout flow allowed an unauthenticated attacker to control donation checkout metadata and obtain full paid gift memberships for a minimal payment without exposing customer or member data or stealing money from a site or its members. This issue is fixed in version 6.44.0.

## Affected Products

- TryGhost — Ghost (>= 6.27.0, < 6.44.0)

## References

- [CNA](https://github.com/TryGhost/Ghost/security/advisories/GHSA-xm43-3m56-w3wf)
- [CNA](https://github.com/TryGhost/Ghost/pull/28351)
- [CNA](https://github.com/TryGhost/Ghost/pull/28352)
- [CNA](https://github.com/TryGhost/Ghost/commit/cab716cd015ac04b7ee50c7a405478d97bc7b1e0)
- [CNA](https://github.com/TryGhost/Ghost/commit/ee7b991b466a7849c70f9d1caed8e491ee4113c6)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 33.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._