HIGH 8.6 NVD
CVE-2026-104082
SmarterMail before build 9777 contains a remote code execution vulnerability that allows an attacker holding a SysAdmin-scoped access token to bypass the Volume
SmarterMail before build 9777 contains a remote code execution vulnerability that allows an attacker holding a SysAdmin-scoped access token to bypass the Volume Mount script-directory containment control by provisioning a new mail domain with an arbitrary FileStore root path inside the trusted Scripts directory via the domain-put endpoint. Attackers can disclose the Scripts path through the AddOrUpdateMount endpoint, clear the upload extension blacklist via the global-mail endpoint, then upload a malicious script through the ordinary mail file-storage upload API so that saving a CommandMount triggers RunScript before validation, resulting in a reverse shell executing as the SmarterMail service account with SYSTEM-level privileges.
References
- https://www.smartertools.com/smartermail/release-notes/current#/9526:~:text=Build%209777%2
- https://www.vulncheck.com/advisories/smartermail-build-9777-sysadmin-remote-code-execution
This high severity vulnerability with a CVSS score of 8.6 was published on 2026-10-09 via NVD.
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