Incorrect Authorization Affecting ghost package, versions >=5.2.0 <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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- published24 Oct 2026
- disclosed1 Oct 2026
- creditUnknown
Introduced: 1 Oct 2026
NewCVE-2026-103266 (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 Incorrect Authorization via the Stripe Checkout flow, which an unauthenticated remote attacker can abuse to attach a paid subscription to an existing member, modify that member's name, and inject arbitrary content into newsletters sent to that member. Depending on the recipient's email client, the injected content is rendered, resulting in HTML injection or XSS.