ILIAS before 5.1.26, 5.2.x before 5.2.15, and 5.3.x before 5.3.4, due to inconsistencies in parameter handling, is vulnerable to various instances of reflected cross-site-scripting.
Services/Form/classes/class.ilDateDurationInputGUI.php and Services/Form/classes/class.ilDateTimeInputGUI.php in ILIAS 5.1.x through 5.3.x before 5.3.4 allow XSS via an invalid date.
Stored XSS vulnerability in the Media Objects component of ILIAS before 5.1.21 and 5.2.x before 5.2.9 allows an authenticated user to inject JavaScript to gain administrator privileges, related to the setParameter function in Services/MediaObjects/classes/class.ilMediaItem.php.