CVE-2004-2447: 1st Class Internet Solutions 1st Class Mail Server

Medium severity, CVSS 4.3. EPSS: 2.7% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in 1st Class Mail Server 4.01 allows remote attackers to inject arbitrary web script or HTML via the Mailbox parameter to (1) viewmail.tagz, (2) the index script under /user/, (3) members.tagz, (4) general.tagz, (5) advanced.tagz, or (6) list.tagz.

Affected products

• 1st Class Internet Solutions 1st Class Mail Server: version 4.01 only

Published 2004-12-31. Last modified 2026-06-16.