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CVE-2026-23760

9.8 · CRITICALActively Exploited

SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API.

Published Jan 22, 2026CWE-288EPSS 96.54%

Overview

CVE-2026-23760 is a critical-severity vulnerability. It was published on January 22, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcode-white.com/public-vulnerability-list/#authenticationserviceforceresetpassword-missing-authentication-in-smartermailReflabs.watchtowr.com/attackers-with-decompilers-strike-again-smartertools-smartermail-wt-2026-0001-auth-bypass/Refwww.smartertools.com/smartermail/release-notes/currentRefwww.vulncheck.com/advisories/smartertools-smartermail-authentication-bypass-via-password-reset-apiCISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-23760Refwww.huntress.com/blog/smartermail-account-takeover-leading-to-rce

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23760?

CVE-2026-23760 is a critical-severity vulnerability. It was published on January 22, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2026-23760?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-23760?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-23760?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23760 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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