CVE-2022-22691: Umbraco CMS

High severity, CVSS 7.4. EPSS: 1% chance of exploitation in the next 30 days.

The password reset component deployed within Umbraco uses the hostname supplied within the request host header when building a password reset URL. It may be possible to manipulate the URL sent to Umbraco users when so that it points to the attackers server thereby disclosing the password reset token if/when the link is followed. A related vulnerability (CVE-2022-22690) could allow this flaw to become persistent so that all password reset URLs are affected persistently following a successful attack. See the AppCheck advisory for further information and associated caveats.

Affected products

• Umbraco Umbraco CMS: before 9.2.0 (fixed in 9.2.0)

Published 2022-01-18. Last modified 2026-06-17.