CVE-2000-0527: 3r Soft Mailstudio 2000

High severity, CVSS 10.0. EPSS: 9.9% chance of exploitation in the next 30 days.

userreg.cgi CGI program in MailStudio 2000 2.0 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters.

Affected products

• 3r Soft Mailstudio 2000: version 2.0 only

Published 2000-06-09. Last modified 2026-06-16.