A host header injection vulnerability exists in gugoan's Economizzer v.0.9-beta1 and commit 3730880 (April 2023). By sending a specially crafted host header in the reset password request, it is possible to send password reset links to users which, once clicked, lead to an attacker-controlled server and thus leak the password reset token. This allows an attacker to reset other users' passwords.

economizzer

A remote code execution (RCE) vulnerability via an insecure file upload exists in gugoan's Economizzer v.0.9-beta1 and commit 3730880 (April 2023). A malicious attacker can upload a PHP web shell as an attachment when adding a new cash book entry. Afterwards, the attacker may visit the web shell and execute arbitrary commands.

economizzer

The commit 3730880 (April 2023) and v.0.9-beta1 of gugoan Economizzer is vulnerable to Clickjacking. Clickjacking, also known as a "UI redress attack", is when an attacker uses multiple transparent or opaque layers to trick a user into clicking on a button or link on another page when they were intending to click on the top-level page. Thus, the attacker is "hijacking" clicks meant for their page and routing them to another page, most likely owned by another application, domain, or both.