Classlink · Classlink Oneclick Extension · CVE-2022-48612
**Name of the Vulnerable Software and Affected Versions**
ClassLink OneClick Extension versions through 10.7
**Description**
A Universal Cross Site Scripting (UXSS) issue allows remote attackers to inject JavaScript into any webpage. This is because a regular expression, which validates whether a URL is controlled by ClassLink, is not present in all applicable places.
**Recommendations**
For ClassLink OneClick Extension versions through 10.7, update to a version that includes the necessary regular expression validation to prevent JavaScript injection.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.