CVE-2026-59817: CWE-472: External Control of Assumed-Immutable Web Parameter in TryGhost Ghost
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.
AI Analysis
Technical Summary
CVE-2026-59817 is an external control of assumed-immutable web parameter vulnerability (CWE-472) in the public donation checkout flow of TryGhost Ghost CMS. Versions from 6.27.0 before 6.44.0 allow an unauthenticated attacker to control donation checkout metadata, resulting in the ability to obtain full paid gift memberships for a minimal payment. The vulnerability does not expose customer or member data nor does it allow theft of money from the site or its members. The vulnerability is resolved in version 6.44.0.
Potential Impact
An attacker can exploit this vulnerability to gain paid gift memberships at minimal cost, potentially undermining the intended payment model of the site. There is no impact on confidentiality of customer or member data, nor is there direct financial theft from the site or its users.
Mitigation Recommendations
Upgrade to Ghost version 6.44.0 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor's versioning information. No other mitigation steps are specified.
CVE-2026-59817: CWE-472: External Control of Assumed-Immutable Web Parameter in TryGhost Ghost
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.
CVSS v3.1
Score 5.3medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-59817 is an external control of assumed-immutable web parameter vulnerability (CWE-472) in the public donation checkout flow of TryGhost Ghost CMS. Versions from 6.27.0 before 6.44.0 allow an unauthenticated attacker to control donation checkout metadata, resulting in the ability to obtain full paid gift memberships for a minimal payment. The vulnerability does not expose customer or member data nor does it allow theft of money from the site or its members. The vulnerability is resolved in version 6.44.0.
Potential Impact
An attacker can exploit this vulnerability to gain paid gift memberships at minimal cost, potentially undermining the intended payment model of the site. There is no impact on confidentiality of customer or member data, nor is there direct financial theft from the site or its users.
Mitigation Recommendations
Upgrade to Ghost version 6.44.0 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor's versioning information. No other mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-07T15:00:50.978Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4fe25b68715ace43d416c4
Added to database: 07/09/2026, 18:03:07 UTC
Last enriched: 07/17/2026, 09:31:01 UTC
Last updated: 08/22/2026, 22:52:15 UTC
Views: 97
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