Likely 0-day
Gitea before version 1.21.0 is affected by URL Redirection to Untrusted Site ('Open Redirect') via internal URLs. The vulnerability exists in the redirect_to parameter used on the login page (/user/login). Due to improper validation of the redirect URL, an attacker can craft a malicious link that redirects authenticated users to an arbitrary external website after login.
id: gitea-open-redirect-bypass
info:
name: Gitea < 1.21.0 - Open Redirect
author: ritikchaddha
...