What’s Vulnerable › Vulnerabilities

CVE-2023-31923

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-05-22 · updated 2026-06-17
• Weakness: CWE-281

Description

Suprema BioStar 2 before 2022 Q4, v2.9.1 has Insecure Permissions. A vulnerability in the web application allows an authenticated attacker with "User Operator" privileges to create a highly privileged user account. The vulnerability is caused by missing server-side validation, which can be exploited to gain full administrator privileges on the system.

Affected products

• supremainc BioStar 2: before 2.9.1 — fixed in 2.9.1

How to fix

Upgrade to a fixed version: supremainc BioStar 2 2.9.1. Check the vendor advisory for mitigations.

References

• https://nobugescapes.com/blog/creating-a-new-user-with-admin-privilege/
• https://nobugescapes.com/blog/creating-a-new-user-with-admin-privilege/

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