CVE-2025-63800

Name: CVE-2025-63800
Creator: NVD / NIST
Published: 2025-11-18T16:15:46.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2025-63800 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.41%

32.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-521

Affected Software

Vendor	Product	Versions
Opensourcepos	Open Source Point Of Sale	3.4.1

References

https://github.com/omkaryepre/vulnerability-research/tree/main/CVE-2025-63800Exploit, Third Party Advisory
https://github.com/opensourcepos/opensourceposProduct
https://opensourcepos.org/Product

Timeline

Published: Nov 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63800?

How severe is CVE-2025-63800?

CVE-2025-63800 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63800?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63800?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST