Improper Authorization in Ghost - CVE-2026-70589
Published: July 30, 2026
Vulnerability identifier: #VU140544
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70589
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to redeem inactive subscription offers.
The vulnerability exists due to improper access control in the offer redemption logic when processing offer redemption requests. A remote attacker can redeem an archived offer to redeem inactive subscription offers.
Affected software
Ghost
How to mitigate CVE-2026-70589
Install security update from vendor's website.
Ghost - update to 6.54.1