CVE:CVE-2006-2839
CNNVD:CNNVD-200606-162
WeBWorK Online Homework Delivery System 2.2.0及更早版本中的PG Problem Editor模块(PGProblemEditor.pm)存在目录遍历漏洞，远程攻击者可读取和写在模板目录之外的文件。
solution:Upgrade webwork webwork to a higher version than 2.2.0,and avoid the version (,2.2.0]