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Vulnerabilities CVE-2026-23760

CVE-2026-23760

Critical
Open
KEV
TLP:CLEAR

SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API

NVD CVE.org
Hacktivism

AI Analysis

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Description

SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail system administrator privileges grant the ability to execute operating system commands via built-in management functionality, effectively providing administrative (SYSTEM or root) access on the underlying host.

Details

CVSS Score
9.3
EPSS Score
96.27%

99.9th percentile

CVSS Vector
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
Confidence
100%
Published
Jan 22, 2026
Last Modified
Aug 4, 2026
CISA KEV
Date Added
Jan 26, 2026
Patch Due
Feb 16, 2026
Used in ransomware campaigns
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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