Directory traversal vulnerability in Best Practical Solutions RT 3.2.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7 allows remote attackers to read arbitrary files via a crafted HTTP request.
Unspecified vulnerability in Request Tracker (RT) 3.8.x before 3.8.17 and 4.0.x before 4.0.13, when using the Apache::Session::File session store, allows remote attackers to obtain sensitive information (user preferences and caches) via unknown vectors, related to a "limited session re-use."
Best Practical Solutions RT 3.x before 3.8.9rc2 and 4.x before 4.0.0rc4 uses the MD5 algorithm for password hashes, which makes it easier for context-dependent attackers to determine cleartext passwords via a brute-force attack on the database.