Reliance on Untrusted Inputs in a Security Decision in Ghost - CVE-2026-103267
Published: September 7, 2026 / Updated: October 1, 2026
Vulnerability identifier: #VU147287
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-103267
CWE-ID: CWE-807
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to create a staff account using an attacker-controlled email address.
The vulnerability exists due to reliance on untrusted inputs in a security decision in the staff invite acceptance process when accepting a staff invitation. A remote user can submit an arbitrary email address with a leaked invite token to create a staff account using an attacker-controlled email address.
Affected software
Ghost
How to mitigate CVE-2026-103267
Install security update from vendor's website.
Ghost - update to 6.62.0