Team Mambo has just released Security Patch 2 for Mambo version 4.5.4. This patch fixes a number of security vulnerabilities and provides some additional hardening of the application. It is recommended that everyone apply this patch as soon as possible. These vulnerabilities affect all recent versions of Mambo so those still running versions of Mambo older than 4.5.4, (ex) 4.5.3h, are recommended to patch up to Mambo 4.5.4 first and then apply security patches 1 & 2. We have also built a version of 4.5.4 with both security patches already applied, MamboV4.5.4_wSP2, which should be used for brand new installs.