lib/WeBWorK/PG/Translator.pm in WeBWorK Program Generation (PG) Language before 2.3.1 uses an insufficiently restrictive regular expression to determine valid macro filenames, which allows attackers to load arbitrary macro files whose names contain the strings (1) dangerousMacros.pl, (2) PG.pl, or (3) IO.pl.

Unspecified vulnerability in WeBWorK 2.1.3 and 2.2-pre1 allows remote privileged attackers to execute arbitrary commands as the web server via unknown attack vectors.

Directory traversal vulnerability in PG Problem Editor module (PGProblemEditor.pm) in WeBWorK Online Homework Delivery System 2.2.0 and earlier allows remote attackers to read and write files outside of the templates directory.

Reflected Cross-Site Scripting (XSS) in WebWork

Reflected Cross-Site Scripting (XSS) vulnerability in WebWork, which allows remote attackers to execute arbitrary code through the 'q' and 'engine' request parameters in /search.