CVE-2025-63800 Auth bypass in n/a

High 7.5 Published 18 Nov 2025 Updated 18 Nov 2025

Authenticated users can set empty passwords due to missing validation, potentially disabling authentication and allowing unauthorized account access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-63800?

CVE-2025-63800 is a high-severity authentication bypass vulnerability in n/a, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The password change endpoint in Open Source Point of Sale 3.4.1 allows users to set their account password to an empty string due to missing server-side validation. When an authenticated user omits or leaves the `password` and `repeat_password` parameters empty in the password change request, the backend still returns a successful response and sets the password to an empty string. This effectively disables authentication and may allow unauthorized access to user or administrative accounts.

Weakness: CWE-521

Which versions are affected by CVE-2025-63800?

It affects 1 product.

Products include Opensourcepos Open Source Point of Sale.

How do I fix CVE-2025-63800?

No fix has been published for CVE-2025-63800 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-63800 being exploited?

There is no known exploitation of CVE-2025-63800 in the wild and no public exploit code.

Sources

Also known as GHSA-q9j2-x62q-rv7w.