CVE-2025-63800Public exploitNetwork attack vector

Unauthorized account access via empty password assignment

Published Nov 18, 2025 · Updated Nov 18, 2025

Weak password validation in Open Source Point of Sale 3.4.1 allows remote authenticated users to set an account password to empty. The POST /home/save/1 handler accepts omitted or blank password and repeat_password fields, reports success, and stores the blank credential. An authenticated session is required to make the change; afterward, the same username and no password provide access to that account.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password validation in Open Source Point of Sale 3.4.1 allows remote authenticated users to set an account password to empty. The POST /home/save/1 handler accepts omitted or blank password and repeat_password fields, reports success, and stores the blank credential. An authenticated session is required to make the change; afterward, the same username and no password provide access to that account.

The record

CVE
CVE-2025-63800
Published
Nov 18, 2025
Updated
Nov 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-521, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-521Weak Password Requirements
T1098Account Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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