Plone CMS 3.0.5, and probably other 3.x versions, places a base64 encoded form of the username and password in the __ac cookie for the admin account, which makes it easier for remote attackers to obtain administrative privileges by sniffing the network.
| Software | From | Fixed in |
|---|---|---|
| plone / plone_cms | - | 3.0.5.x |
| plone / plone_cms | - | 3.x |