SQL injection vulnerability in the os_news module in Open-school (OS) 1.0 allows remote attackers to execute arbitrary SQL commands via the id parameter in a show action to index.php.

Open-School 3.0, and Community Edition 2.3, allows SQL Injection via the index.php?r=students/students/document id parameter.

Open-School 3.0, and Community Edition 2.3, allows XSS via the osv/index.php?r=students/guardians/create id parameter.

Open-School Community Edition 2.2 does not properly restrict access to the export functionality, which allows remote authenticated users to obtain sensitive information via the r parameter with the value export to index.php.

Multiple cross-site scripting (XSS) vulnerabilities in Open-School Community Edition 2.2 allow remote attackers to inject arbitrary web script or HTML via the YII_CSRF_TOKEN HTTP cookie or the StudentDocument, StudentCategories, StudentPreviousDatas parameters to index.php.