CVE-2026-23760CRITICAL 9.8CISA KEVEPSS p99.9%
CVE-2026-23760SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability
SmarterTools / SmarterMail
Description
SmarterTools SmarterMail contains an authentication bypass using an alternate path or channel 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. This could allow an unauthenticated attacker to supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 96.27% probability of exploitation · percentile 99.9% · 2026-06-17T12:03:21Z |
| Published | 2026-01-22 |
| Last modified | 2026-01-27 |
CISA KEV entry
Added to KEV: 2026-01-26
Underlying weaknesses· 1
References
- https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail
- https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/
- https://www.smartertools.com/smartermail/release-notes/current
- https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760
- https://www.huntress.com/blog/smartermail-account-takeover-leading-to-rce
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Authentication Bypass Using an Alternate Path or Channelcwe-288 | 0% | live |
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerabilitykev-cve-2026-23760 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.