CVE-2006-2247: Webcalendar

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.

Affected products

• Webcalendar Webcalendar: version 1.0.1 only; version 1.0.2 only; version 1.0.3 only

Published 2006-05-09. Last modified 2026-06-16.