CVE-2018-17830
The $args variable in addons/mediapool/pages/index.php in REDAXO 5.6.2 is not effectively filtered, because names are not restricted (only values are restricted). The attacker can insert XSS payloads via an index.php?page=mediapool/media&opener_input_field=&args[ substring.
Source: CVE-2018-17830