CVE-2022-48612: Classlink Oneclick

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

A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.7 allows remote attackers to inject JavaScript into any webpage, because a regular expression (validating whether a URL is controlled by ClassLink) is not present in all applicable places.

Affected products

• Classlink Oneclick: up to and including 10.7

Published 2023-10-16. Last modified 2026-06-17.