CVE-2005-3982: Webcalendar

Medium severity, CVSS 5.0. EPSS: 7.1% chance of exploitation in the next 30 days.

CRLF injection vulnerability in layers_toggle.php in WebCalendar 1.0.1 might allow remote attackers to modify HTTP headers and conduct HTTP response splitting attacks via the ret parameter, which is used to redirect URL requests.

Affected products

• Webcalendar Webcalendar: version 1.0.1 only

Published 2005-12-04. Last modified 2026-06-16.