CVE-2000-0527 userreg.cgi CGI program in MailStudio 2000 2.0 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters.

HighCVSS 10.0 EPSS 9.9%

Published: 2000-07-12 07:00
Updated: 2026-06-17 00:51
Exploit status: No public exploit known

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Description

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

Affected products

Product	Affected versions	Fixed in
3r soft mailstudio 2000	= 2.0	No fix listed

References

20000609 Mailstudio2000 CGI Vulnerabilities [S0ftPj.4] mailing-list
1335 vdb-entry vendor-advisory

CVSS v2.0

10.0 High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality: Complete
Integrity: Complete
Availability: Complete

Weakness & likelihood

EPSS (exploitation probability, 30 days): 9.92% (percentile 95.7)
CWE: Not classified

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

3R Soft MailStudio 2000 2.0 - 'userreg.cgi' Arbitrary Command Execution Exploit · Exploit Database (OffSec) · 2000-04-24