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Vulnerability record · CVE-2023-28713 · published 1 June 2023

CVE-2023-28713: Contec conprosys hmi system cleartext storage of sensitive data vulnerability

Contec · Conprosys Hmi System

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.

8.1 CVSS 3.1 High EPSS 0.43% · top 65.1% CWE-312 · Cleartext storage of sensitive data
8.1CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://jvn.jp/en/vu/JVNVU93372935/ Third Party Advisory
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_e Vendor Advisory
https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_23053 Vendor Advisory
https://jvn.jp/en/vu/JVNVU93372935/ Third Party Advisory
https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_e Vendor Advisory
https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_23053 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-44456CONPROSYS HMI System OS command injection via crafted requestCONPROSYS HMI System (CHS) Ver.3.4.4 and earlier contains an OS command injection flaw (CWE-78). A remote attacker can send a specially crafted reque…EPSS 70%analysed8.8CVE-2023-28657Contec conprosys hmi system missing authorization vulnerabilityImproper access control vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. A user of the PC where the affected product is in…EPSS 0.71%7.8CVE-2023-28399Contec conprosys hmi system incorrect permission assignment vulnerabilityIncorrect permission assignment for critical resource exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. ACL (Access Control List) is not …EPSS 0.18%7.5CVE-2023-22339Contec conprosys hmi system improper access control vulnerabilityImproper access control vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to bypass access r…EPSS 1.1%7.5CVE-2023-22331Contec conprosys hmi system improper privilege management vulnerabilityUse of default credentials vulnerability in CONPROSYS HMI System (CHS) Ver.3.4.5 and earlier allows a remote unauthenticated attacker to alter user c…EPSS 1.0%7.2CVE-2023-29154Contec conprosys hmi system sql injection vulnerabilitySQL injection vulnerability exists in the CONPROSYS HMI System (CHS) versions prior to 3.5.3. A user who can access the affected product with an admi…EPSS 41%6.9CVE-2025-34081Contec conprosys hmi system vulnerabilityThe Contec Co.,Ltd. CONPROSYS HMI System (CHS) exposes a PHP phpinfo() debug page to unauthenticated users that may contain sensitive data useful for…EPSS 0.64%6.5CVE-2023-22324Contec conprosys hmi system sql injection vulnerabilitySQL injection vulnerability in the CONPROSYS HMI System (CHS) Ver.3.5.0 and earlier allows a remote authenticated attacker to execute an arbitrary SQ…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2023-28713), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.