Vulnerability details
CVE-2026-23760
Actively exploitedSmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| SmarterTools | SmarterMail | v < 100.0.9511 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://www.smartertools.com/smartermail/release-notes/current release-notespatch
- https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/ technical-descriptionexploit
- https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail third-party-advisory
- https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api third-party-advisory
- https://www.huntress.com/blog/smartermail-account-takeover-leading-to-rce third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760 government-resource
Details
- Published
- 2026-01-22
- Last updated
- 2026-08-04
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 89 · Critical
CISA KEV catalog
- Date added
- 2026-01-26
- Due date
- 2026-02-16
- Used in ransomware
- Yes
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-288Authentication Bypass Using an Alternate Path or Channel