Reliance on Untrusted Inputs in a Security Decision Affecting ghost package, versions >=0.5.0 <6.62.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-GHOST-21694004
- published24 Oct 2026
- disclosed1 Oct 2026
- creditUnknown
Introduced: 1 Oct 2026
NewCVE-2026-103267 (opens in a new tab)How to fix?
Upgrade ghost to version 6.62.0 or higher.
Overview
ghost is a publishing platform
Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision via the staff invite signup flow, where the email field in the invitation acceptance form was editable and user-supplied rather than being populated and locked from the invitation token. An authenticated attacker with a valid invite token can submit an arbitrary email address during signup, allowing them to register a staff account under an email address different from the one the invitation was issued to.