CVE-2023-28713: Contec Conprosys HMI System

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Plaintext storage of a password exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. Because account information of the database is saved in a local file in plaintext, a user who can access the PC where the affected product is installed can obtain the information. As a result, information in the database may be obtained and/or altered by the user.

Affected products

• Contec Conprosys HMI System: before 3.5.3 (fixed in 3.5.3)

Published 2023-06-01. Last modified 2026-06-17.