Reflected Cross-Site Scripting Vulnerability in Nextcloud Server by Nextcloud
CVE-2021-22878
4.8MEDIUM
What is CVE-2021-22878?
Nextcloud Server versions before 20.0.6 are susceptible to a reflected cross-site scripting (XSS) vulnerability. This issue arises from insufficient input sanitization in the OC.Notification.show
function, allowing attackers to inject malicious scripts into the response. Unauthenticated users can exploit this flaw, potentially leading to unauthorized access, data manipulation, or other malicious activities. It is essential for users and administrators to upgrade to the latest version to mitigate this risk and enhance their security posture.
Affected Version(s)
Nextcloud Server Fixed in 20.0.6