Pachno vulnerabilities

Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_username cookie to any value and request a switch to user ID 1 to obtain session tokens or password hashes belonging to administrator accounts.

Pachno 1.0.6 contains a CSRF vulnerability that allows attackers to perform arbitrary actions in an authenticated user's context by exploiting missing CSRF protections on state-changing endpoints. Attackers can craft malicious requests targeting login, registration, file upload, milestone editing, and administrative functions.

Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.