CVE-2008-1394: Plone CMS

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

Plone CMS before 3 places a base64 encoded form of the username and password in the __ac cookie for all user accounts, which makes it easier for remote attackers to obtain access by sniffing the network.

Affected products

• Plone Plone CMS: up to and including 2.5.1; version 2.0.5 only; version 2.1.2 only; version 2.1.3 only; version 2.5 only

Published 2008-03-20. Last modified 2026-06-16.