Websense Web Security and Web Filter before 7.1 Hotfix 21 do not set the secure flag for the Encrypted Session (SSL) cookie in an https session, which makes it easier for remote attackers to capture this cookie by intercepting its transmission within an http session.

The Filtering Service in Websense Web Security and Web Filter before 6.3.1 Hotfix 136 and 7.x before 7.1.1 on Windows allows remote attackers to cause a denial of service (filtering outage) via a crafted sequence of characters in a URI.

The Remote Filtering component in Websense Web Security and Web Filter before 7.1 Hotfix 66 allows local users to bypass filtering by (1) renaming the WDC.exe file or (2) deleting driver files.

Websense Web Security and Web Filter before 6.3.3 Hotfix 27 and 7.x before 7.1.1 allow remote attackers to cause a denial of service (Blue Coat appliance integration outage) via a long URL.