Improper Authentication Restrictions in Open Source Point of Sale by opensourcepos
CVE-2026-19895

6.3MEDIUM

Key Information:

Vendor

Opensourcepos

Status
Open Source Point Of Sale
Vendor
CVE Published:
15 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19895?

A security flaw has been identified in Open Source Point of Sale versions up to 3.4.2, impacting the Login Endpoint. Specifically, the vulnerability lies within the Login::index function in the app/Config/Filters.php file, allowing an attacker to exploit improper restrictions on excessive authentication attempts. This issue can enable unauthorized access through remote exploitation, although it requires a significant level of complexity to execute successfully. Despite being reported early through an issue tracking channel, the project maintainers have not yet addressed the problem or issued a patch, raising concerns about the ongoing security of the affected versions.

Affected Version(s)

Open Source Point of Sale 3.4.0

Open Source Point of Sale 3.4.1

Open Source Point of Sale 3.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-19895 - Proof of Concept

References

https://vuldb.com/vuln/390085
vdb-entrytechnical-description
https://vuldb.com/vuln/390085/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19895
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZAST.AI (VulDB User)
VulDB CNA Team
.