---
id: CVE-2026-23760
title: >-
  SmarterTools SmarterMail versions prior to build 9511 contain an
  authentication bypass vulnerability in the password reset API
summary: >-
  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 r…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-288
vendor: smartertools
product: smartermail
affected:
  - smartermail < 100.0.9511
patched:
  - smartermail 100.0.9511
published: '2026-01-22'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-23760'
references:
  - url: >-
      https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail
    label: disclosure@vulncheck.com
  - url: >-
      https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/
    label: disclosure@vulncheck.com
  - url: 'https://www.smartertools.com/smartermail/release-notes/current'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api
    label: disclosure@vulncheck.com
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://www.huntress.com/blog/smartermail-account-takeover-leading-to-rce'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.96544
epssPercentile: 0.99882
kev: true
kevDateAdded: '2026-01-26'
kevDueDate: '2026-02-16'
kevRansomware: true
exploited: true
ingestedAt: '2026-08-04T05:36:13.445Z'
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/MaxMnMl/smartermail-CVE-2026-23760-poc'
    - 'https://github.com/HORKimhab/CVE-2026-0001'
  nuclei:
    - CVE-2026-23760
  checkedAt: '2026-09-21T15:28:30.531Z'
exploitAvailable: true
---

## Overview

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.

## Affected

- `smartermail < 100.0.9511`

## Remediation

Upgrade past the affected range:

- `smartermail 100.0.9511`