CVE-2026-103266
Ghost 5.2.0 before 6.62.0 Unauthenticated Stripe Checkout Account Modification
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
Ghost versions 5.2.0 through versions prior to 6.62.0 allow a remote attacker, without authentication, to abuse the Stripe Checkout flow to attach a paid subscription to an existing member, modify that member's name, and inject content into newsletters sent to the member. Depending on the recipient's email client, the injected content may be rendered, resulting in HTML injection or cross-site scripting (XSS).
| CWE | CWE-863 |
| Vendor | tryghost |
| Product | ghost |
| Published | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Affected Versions
TryGhost / Ghost
5.2.0 < 6.62.0
References
Credits
🔍 unknownhad