Impact
Based on an analysis of response codes and timing of Umbraco 14+ management API responses, it's possible to determine whether an account exists.
Patches
Patched in 14.3.2 and 15.1.2.
Workarounds
None available.
Impact Authenticated users are able to exploit an XSS vulnerability when viewing certain localized backoffice components.
Patches Will be patched in 14.3.2 and 15.1.2.
Note: This issue was reported by Pratik Patil from NetSPI @Nexusss-ppatil