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CVE-2026-23760

CRITICALCISA KEV

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/22/2026

Last Modified1/27/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorSmarterTools

ProductSmarterMail

Vulnerability NameSmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability

KEV Date Added2026-01-26

Remediation Due Date2026-02-16

Ransomware UseKnown

Affected Products

smartertools:smartermail

Weaknesses (CWE)

CWE-288

References

https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail(disclosure@vulncheck.com)

https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/(disclosure@vulncheck.com)

https://www.smartertools.com/smartermail/release-notes/current(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api(disclosure@vulncheck.com)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.huntress.com/blog/smartermail-account-takeover-leading-to-rce(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.