CVE-2022-39020: Schoolbox

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Multiple instances of XSS (stored and reflected) was found in the application. For example, features such as student assessment submission, file upload, news, ePortfolio and calendar event creation were found to be vulnerable to cross-site scripting.

Affected products

• Schoolbox Schoolbox: version 21.0.2 only

Published 2022-10-31. Last modified 2026-06-17.