The Ploticus module in PhpWiki 1.5.0 allows remote attackers to execute arbitrary code via shell metacharacters in a device option in the edit[content] parameter to index.php/HeIp. NOTE: some of these details are obtained from third party information.

Tuleap before 9.7 allows command injection via the PhpWiki 1.3.10 SyntaxHighlighter plugin. This occurs in the Project Wiki component because the proc_open PHP function is used within PhpWiki before 1.5.5 with a syntax value in its first argument, and an authenticated Tuleap user can control this value, even with shell metacharacters, as demonstrated by a '<?plugin SyntaxHighlighter syntax="c;id"' line to execute the id command.