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

Quick assessment

Affected
SmarterTools SmarterMail
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SmarterTools SmarterMail是SmarterTools公司的一套邮件服务器软件。该软件支持垃圾邮件过滤、数据统计、简单邮件传输协议SMTP验证等功能。 SmarterTools SmarterMail 9511之前版本存在安全漏洞，该漏洞源于密码重置API存在身份验证绕过，可能导致完全管理员账户被接管。

CVSS 9.3 · Critical KEV · Ransomware EPSS 96.54% · P100

Public Exploits 1

Nuclei · 1 CVE-2026-23760.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
SmarterTools SmarterMail < 100.0.9511 affected
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I. Basic Information for CVE-2026-23760

Vulnerability Information
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Vulnerability Title
SmarterTools SmarterMail < Build 9511 Authentication Bypass via Password Reset API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
SmarterTools SmarterMail 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SmarterTools SmarterMail是SmarterTools公司的一套邮件服务器软件。该软件支持垃圾邮件过滤、数据统计、简单邮件传输协议SMTP验证等功能。 SmarterTools SmarterMail 9511之前版本存在安全漏洞，该漏洞源于密码重置API存在身份验证绕过，可能导致完全管理员账户被接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
SmarterTools SmarterMail 0 ~ 100.0.9511 -

II. Public POCs for CVE-2026-23760

# POC Description Source Link Shenlong Link
1 Detected a SmartMail admin password reset vulnerability by sending a POST request to the `/api/v1/auth/force-reset-password` endpoint, indicating that administrative password resets could potentially be triggered without proper authorization. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-23760.yaml POC Details
2 SmarterMail Auth Bypass & RCE Exploit https://github.com/hilwa24/CVE-2026-23760_SmarterMail-Auth-Bypass-and-RCE POC Details
3 CVE-2026-23760 - An authentication bypass via password reset API in SmarterMail. https://github.com/MaxMnMl/smartermail-CVE-2026-23760-poc POC Details
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III. Intelligence Information for CVE-2026-23760

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Vendor Advisories for CVE-2026-23760 (2)

Vendor Pages for CVE-2026-23760 (1)

IV. Related Vulnerabilities

Same product: SmarterMail
Same vendor: SmarterTools
Same weakness: CWE-288

V. Comments for CVE-2026-23760

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