Absolute path traversal vulnerability in the Disk Usage module (frontend/x/diskusage/index.html) in cPanel 11.18.3 allows remote attackers to list arbitrary directories via the showtree parameter.

Directory traversal vulnerability in index.php in Fantastico, as used with cPanel 11.x, allows remote attackers to read arbitrary files via a .. (dot dot) in the sup3r parameter.

The WHM interface 11.15.0 for cPanel 11.18 before 11.18.4 and 11.22 before 11.22.3 allows remote attackers to bypass XSS protection and inject arbitrary script or HTML via repeated, improperly-ordered "<" and ">" characters in the (1) issue parameter to scripts2/knowlegebase, (2) user parameter to scripts2/changeip, (3) search parameter to scripts2/listaccts, and other unspecified vectors.

Multiple cross-site request forgery (CSRF) vulnerabilities in the WHM interface 11.15.0 for cPanel 11.18 before 11.18.4 and 11.22 before 11.22.3 allow remote attackers to perform unauthorized actions as cPanel administrators via requests to cpanel/whm/webmail and other unspecified vectors.

Multiple cross-site request forgery (CSRF) vulnerabilities in cPanel, possibly 11.18.3 and 11.19.3, allow remote attackers to (1) execute arbitrary code via the command1 parameter to frontend/x2/cron/editcronsimple.html, and perform various administrative actions via (2) frontend/x2/sql/adddb.html, (3) frontend/x2/sql/adduser.html, and (4) frontend/x2/ftp/doaddftp.html.

Cross-site scripting (XSS) vulnerability in frontend/x/manpage.html in cPanel 11.18.3 and 11.21.0-BETA allows remote attackers to inject arbitrary web script or HTML via the query string.