CVE-2007-2233: Cosign

Medium severity, CVSS 6.5. EPSS: 2% chance of exploitation in the next 30 days.

cosign-bin/cosign.cgi in Cosign 2.0.2 and earlier allows remote authenticated users to perform unauthorized actions as an arbitrary user by using CR (\r) sequences in the service parameter to inject LOGIN and REGISTER commands with the desired username.

Affected products

• Cosign Cosign: version 0.7.0 only; version 0.8.0 only; version 0.9.0 only; version 1.0 only; version 1.1 only; version 1.5 only; …

Published 2007-04-25. Last modified 2026-06-16.