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CVE-2025-52691

Upload Arbitrary Files

Basic Information

CVE State
PUBLISHED
Reserved Date
June 19, 2025
Published Date
December 29, 2025
Last Updated
February 26, 2026
Vendor
SmarterTools
Product
SmarterMail
Description
Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.
Tags
cisa nuclei_scanner

CVSS Scores

CVSS v3.1

10.0 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2026-06-01 10:49:47 UTC) Source

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/

Known Exploited Vulnerability Information

Source Added Date
CVE 2026-06-01 10:49:47 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-52691.yaml 2026-06-01 15:34:42 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Detected by Nuclei