The administrative interface for Django 1.3.x before 1.3.6, 1.4.x before 1.4.4, and 1.5 before release candidate 2 does not check permissions for the history view, which allows remote authenticated administrators to obtain sensitive object history information.

The form library in Django 1.3.x before 1.3.6, 1.4.x before 1.4.4, and 1.5 before release candidate 2 allows remote attackers to bypass intended resource limits for formsets and cause a denial of service (memory consumption) or trigger server errors via a modified max_num parameter.

The django.http.HttpRequest.get_host function in Django 1.3.x before 1.3.4 and 1.4.x before 1.4.2 allows remote attackers to generate and display arbitrary URLs via crafted username and password Host header values.