# CVE-2026-23760: SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API

> CVE-2026-23760: SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-23760
Last updated: 2026-08-04T05:16:38Z

- Published: 2026-01-22 14:35 UTC · Updated: 2026-08-04 05:16 UTC · Assigner: VulnCheck
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 96.4%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-01-26, federal due date 2026-02-16, ransomware use: Known
- CWE: CWE-288

## 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.

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- SmarterTools: SmarterMail

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-23760)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-23760)
- [https://code-white.com/public-vulnerability-list/\#authenticationserviceforceresetpassword-missing-authentication-in-smartermail](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://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.smartertools.com/smartermail/release-notes/current)
- [https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api](https://www.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-api)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-23760 · Markdown: https://rewindex.com/cve/CVE-2026-23760.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-23760 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:06:18.758Z