An XSS issue exists in the question-pool file-upload preview feature in ILIAS 6.4.

A local file inclusion vulnerability in ILIAS before 5.3.19, 5.4.10 and 6.0 allows remote authenticated attackers to execute arbitrary code via the import of personal data.

An information disclosure vulnerability in ILIAS before 5.3.19, 5.4.12 and 6.0 allows remote authenticated attackers to get the upload data path via a workspace upload.

Ilias 5.3 before 5.3.12; 5.2 before 5.2.21 is affected by: Cross Site Scripting (XSS) - CWE-79 Type 2: Stored XSS (or Persistent). The impact is: Execute code in the victim's browser. The component is: Assessment / TestQuestionPool. The attack vector is: Cloze Test Text gap (attacker) / Corrections view (victim). The fixed version is: 5.3.12.

ILIAS before 5.2.4 has XSS via the cmd parameter to the displayHeader function in setup/classes/class.ilSetupGUI.php in the Setup component.

Services/COPage/classes/class.ilPCSourceCode.php in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS.

ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 redirects a logged-in user to a third-party site via the return_to_url parameter.

The RSS subsystem in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS via a URI to Services/Feeds/classes/class.ilExternalFeedItem.php.

Services/Feeds/classes/class.ilExternalFeedItem.php in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS via a link attribute.

ILIAS 5.3.4 has XSS through unsanitized output of PHP_SELF, related to shib_logout.php and third-party demo files.

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.

error.php in ILIAS 5.2.x through 5.3.x before 5.3.4 allows XSS via the text of a PDO exception.

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.