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Description

A flaw has been found in opensourcepos Open Source Point of Sale up to 3.4.2. Impacted is the function Login of the file app/Models/Employee.php of the component Employee Login. This manipulation causes use of weak hash. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitability is considered difficult. The actual existence of this vulnerability is currently in question. The vendor explains: "[T]he code is still there to allow the upgrade path to work. The default password is initially seeded with the old hash function, but then migrated to a newer one after login. [T]he hash version check might be cleaned up in the future. Currently it's not actively in use as any password change will use a newer hash function."

PUBLISHED Reserved 2026-05-18 | Published 2026-05-18 | Updated 2026-05-19 | Assigner VulDB




MEDIUM: 6.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
LOW: 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:R
LOW: 3.7CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:R
2.6AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:ND/RC:UR

Problem types

Use of Weak Hash

Risky Cryptographic Algorithm

Product status

3.4.0
affected

3.4.1
affected

3.4.2
affected

Timeline

2026-05-18:Advisory disclosed
2026-05-18:VulDB entry created
2026-05-18:VulDB entry last update

Credits

Kamran Saifullah (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/364436 (VDB-364436 | opensourcepos Open Source Point of Sale Employee Login Employee.php login weak hash) vdb-entry technical-description

vuldb.com/vuln/364436/cti (VDB-364436 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/802561 (Submit #802561 | opensourcepos Open Source Point of Sale 3.4.1 Weak Encoding for Password) third-party-advisory

cve.org (CVE-2026-8803)

nvd.nist.gov (CVE-2026-8803)

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