Red Hat Security Advisory 2013-1521-01 - Django is a high-level Python Web framework that encourages rapid development and a clean, pragmatic design. It focuses on automating as much as possible and adhering to the DRY principle. It was discovered that the django.utils.http.is_safe_url() function considered any URL that used a scheme other than HTTP or HTTPS as safe. An attacker could potentially use this flaw to perform cross-site scripting attacks. A directory traversal flaw was found in Django's "ssi" template tag, which takes a file path as input and outputs that file's contents. An attacker able to alter templates that made use of the "ssi" tag on a site could use this flaw to access any local files accessible to Django.
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