What’s Vulnerable › Vulnerabilities

CVE-2026-59817: Ghost: Paid gift memberships obtainable at minimal cost via the donations feature

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-10-25
• Weakness: CWE-472

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: from 6.27.0, < 6.44.0

References

• https://github.com/TryGhost/Ghost/commit/cab716cd015ac04b7ee50c7a405478d97bc7b1e0
• https://github.com/TryGhost/Ghost/commit/ee7b991b466a7849c70f9d1caed8e491ee4113c6
• https://github.com/TryGhost/Ghost/pull/28351
• https://github.com/TryGhost/Ghost/pull/28352
• https://github.com/TryGhost/Ghost/security/advisories/GHSA-xm43-3m56-w3wf

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