CVE-2003-1485: Clearswift Mailsweeper

Medium severity, CVSS 5.0. EPSS: 1.3% chance of exploitation in the next 30 days.

Clearswift MAILsweeper 4.0 through 4.3.7 allows remote attackers to bypass filtering via a file attachment that contains "multiple extensions combined with large blocks of white space."

Affected products

• Clearswift Mailsweeper: version 4.0 only; version 4.1 only; version 4.2 only; version 4.3 only; version 4.3.3 only; version 4.3.4 only; …

Published 2003-12-31. Last modified 2026-06-16.