CVE-2025-52691
SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability
10.0
CVSS 3.1
85.7 %
EPSS (current)
2026-01-26
KEV addition
Yes
Ransomware
Timeline
Publication, first public exploit and KEV addition on a day axis.
Key facts
Vendor / product: SmarterTools / SmarterMail
Published: 2025-12-29 · Due (CISA): 2026-02-16
CWE: CWE-434 · EU list: no
Exploit references (metadata only)
| Source | Reference | Title | Date |
|---|---|---|---|
| nuclei | http/cves/2025/CVE-2025-52691.yaml | SmarterMail - Unrestricted File Upload | – |
| metasploit | exploit/multi/http/smartermail_guid_file_upload | exploit/multi/http/smartermail_guid_file_upload | 2025-10-09 |
References only — no downloads or instructions.