Quick answers
- Is CVE-2026-103267 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103267 being exploited in the wild.
- How severe is CVE-2026-103267?
- Medium severity, with a CVSS score of 4.3, published 1 October 2026.
- Which products and versions are affected?
- Ghost 0.5.0 to 6.61.x.
- Is there a fix for CVE-2026-103267?
- Yes: fixed in 6.62.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-103267 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-103267?
- Check whether you run Ghost at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 6.62.0
Technical details
Staff invite acceptance in Ghost did not validate the email address submitted during account creation against the invite token, allowing attackers to accept leaked invite tokens with attacker-controlled email addresses (CWE-807). The attack requires a valid but leaked invite token and network access to the invite endpoint; no user interaction is needed once a token is obtained. An attacker gains the ability to create a staff account with arbitrary email, enabling unauthorized access to administrative functions.
Affected products
- Ghost Ghost 0.5.0 to 6.61.x
Timeline
- 2026-09-03: disclosed
- 2026-10-01: advisory