Multiple cross-site scripting (XSS) vulnerabilities in Open Journal Systems before 2.3.7 allow remote attackers and remote authenticated users to inject arbitrary web script or HTML via the (1) editor or (2) callback parameters to lib/pkp/lib/tinymce/jscripts/tiny_mce/plugins/ibrowser/ibrowser.php in the iBrowser plugin, (3) authors[][url] parameter to index.php, or (4) Bio Statement or (5) Abstract of Submission fields to the stripUnsafeHtml function in lib/pkp/classes/core/String.inc.php.