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.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.1% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)