CVE-2014-1610: Improper Input Validation

MediaWiki 1.22.x before 1.22.2, 1.21.x before 1.21.5, and 1.19.x before 1.19.11, when DjVu or PDF file upload support is enabled, allows remote attackers to execute arbitrary commands via shell metacharacters in 1 the page parameter to includes/media/DjVu.php; 2 the w parameter aka width field to...