CVE-2020-11576

Fixed in v1.5.1, Argo version v1.5.0 was vulnerable to a user-enumeration vulnerability which allowed attackers to determine the usernames of valid non-SSO accounts because /api/v1/session returned 401 for an existing username and 404 otherwise...

CVE-2025-24011 Umbraco CMS Vulnerable to User Enumeration Feasible Based On Management API Timing and Response Codes

Umbraco is a free and open source .NET content management system. Starting in version 14.0.0 and prior to versions 14.3.2 and 15.1.2, it's possible to determine whether an account exists based on an analysis of response codes and timing of Umbraco management API responses. Versions 14.3.2 and...