Improper authentication in SmarterMail - CVE-2026-23760
Published: January 22, 2026 / Updated: February 6, 2026
Vulnerability identifier: #VU121946
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2026-23760
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: SmarterTools Inc.
Affected software:
SmarterMail
SmarterMail
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an error in the password reset feature. A remote non-authenticated attacker can reset password of an administrative user and gain full access to the application, including ability to execute system commands.
How to mitigate CVE-2026-23760
Install updates from vendor's website.