CVE-2026-23760 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-23760CRITICAL

SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .9627   99.9   YES

AFFECTED
  Product      Versions     Fixed
  SmarterMail  unspecified  —

TIMELINE
  Jan 15  Reserved by VulnCheck
  Jan 26  Added to CISA KEV, remediation due 2026-02-16
  Jan 26  Published (CNA: VulnCheck)
  Aug 3   EXPLOIT PUBLISHED — CVE-2026-23760 (SmarterTools SmarterMail). Public exploit reference added.

CWE-288 · CNA: VulnCheck · CVSS v4.0 · 6 references · NVD status: Analyzed · KEV due February 16, 2026

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
January 15, 2026	Reserved	Reserved by VulnCheck
January 26, 2026	KEV ADDED	Added to CISA KEV, remediation due 2026-02-16
January 26, 2026	Published	Published (CNA: VulnCheck)
August 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-23760 (SmarterTools SmarterMail). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
SmarterTools	SmarterMail	—	—	—

Weaknesses

CWE-288

References (6)

https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail [Third Party Advisory]
https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/ [Exploit, Third Party Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760 [US Government Resource]
https://www.huntress.com/blog/smartermail-account-takeover-leading-to-rce [Exploit, Third Party Advisory]
https://www.smartertools.com/smartermail/release-notes/current [Release Notes]
https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api [Third Party Advisory]

Authoritative record: CVE-2026-23760 at cve.org

Vendors: smartertools

Weaknesses: CWE-288

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-23760 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.