A directory traversal vulnerability in manager/controllers/default/resource/tvs.php in MODx Revolution 2.0.2-pl and possibly earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the class_key parameter when magic_quotes_gpc is disabled.
View the template here CVE-2010-5278.yaml
References:
http://packetstormsecurity.org/1009-exploits/modx202pl-lfi.txt