How severe is CVE-2025-63800?

CVE-2025-63800 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-63800 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63800?

CVE-2025-63800 affects Opensourcepos Open Source Point Of Sale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63800?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-63800 have an EU (EUVD) identifier?

Yes. CVE-2025-63800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198040.

When was CVE-2025-63800 published?

CVE-2025-63800 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-63800

CVE-2025-63800 is a high-severity vulnerability in Opensourcepos Open Source Point Of Sale with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-521.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198040
Weakness: CWE-521
Affected product: Opensourcepos Open Source Point Of Sale
Published: 2025-11-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-63800?: 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.
How severe is CVE-2025-63800?: CVE-2025-63800 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-63800 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63800?: CVE-2025-63800 affects Opensourcepos Open Source Point Of Sale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63800?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-63800 have an EU (EUVD) identifier?: Yes. CVE-2025-63800 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198040.
When was CVE-2025-63800 published?: CVE-2025-63800 was published on 2025-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opensourcepos:open_source_point_of_sale:3.4.1:*:*:*:*:*:*:*

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