CVE-2025-52691
SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability
Summary
SmarterTools SmarterMail contains an unrestricted upload of file with dangerous type vulnerability that could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.
Affected software
Vendor: SmarterTools · Product: SmarterMail
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in SmarterTools
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2026-23760 | SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channe | 95.7% | Yes |
| CVE-2026-24423 | SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerabil | 87.7% | Yes |
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