Executive brief
Open Source Point of Sale is a web-based retail management system. A security issue was identified where the software uses an outdated and weak method for hashing passwords during the login process. While this could theoretically allow an attacker to more easily crack stolen password data, the vendor states this is legacy code used only for upgrading older accounts and that passwords are automatically updated to a secure format upon the next successful login.
Technical details
A vulnerability classified as Use of a Broken or Risky Cryptographic Algorithm (CWE-327/CWE-328) exists in the Login function of app/Models/Employee.php. The application utilizes a weak hashing algorithm for password verification to maintain backward compatibility for legacy accounts. An attacker with access to the database could potentially crack these weak hashes more efficiently than modern standards allow. However, the vendor notes that the system is designed to migrate users to a stronger hash immediately upon their first successful login following an upgrade, and any manual password changes utilize the updated, secure hashing mechanism. The exploitability is considered difficult due to the high complexity of targeting specific unmigrated accounts.
Affected products
- opensourcepos Open Source Point of Sale up to 3.4.2
Timeline
- 2026-05-18: advisory: NVD published the CVE record based on VulDB data
- 2026-05-18: disclosed: Vendor provided a statement disputing the severity/impact of the legacy code