CVE-2006-6168: Tiki Tikiwiki Cms/groupware

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

tiki-register.php in TikiWiki before 1.9.7 allows remote attackers to trigger "notification-spam" via certain vectors such as a comma-separated list of addresses in the email field, related to lack of "a minimal check on email."

Affected products

• Tiki Tikiwiki Cms/groupware: up to and including 1.9.6; version 1.6.1 only; version 1.9.0 only; version 1.9.1 only; version 1.9.2 only; version 1.9.3 only; …

Published 2006-11-29. Last modified 2026-06-16.