A vulnerability was discovered by Aung Khant that allows for exploitable SQL Injection attacks against a Joomla 1.6.0 install. This exploit attempts to leverage the SQL Injection to extract admin credentials, and use those credentials to execute arbitrary PHP code against the target. The vulnerability is due to a validation issue in /components/com_content/models/category.php that erroneously uses the "string" type whenever filtering the user supplied input. This issue was fixed by performing a whitelist check of the user supplied order data against the allowed order types, and also escaping the input.
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