CVE-2023-28651

Name: CVE-2023-28651
Creator: NVD / NIST
Published: 2023-06-01T02:15:09.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 64.80%

Last modified Jun 17, 2026

CVE-2023-28651 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Cross-site scripting vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. If a user who can access the affected product with an administrative privilege configures specially crafted settings, an arbitrary script may be executed on the web browser of the other user who is accessing the affected product with an administrative privilege.. EPSS estimates a 64.80% chance of exploitation in the next 30 days.

Description

Cross-site scripting vulnerability exists in CONPROSYS HMI System (CHS) versions prior to 3.5.3. If a user who can access the affected product with an administrative privilege configures specially crafted settings, an arbitrary script may be executed on the web browser of the other user who is accessing the affected product with an administrative privilege.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

64.80%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Contec	Conprosys Hmi System	< 3.5.3

References

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_en.pdfVendor Advisory
https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_jp.pdfVendor 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_en.pdfVendor Advisory
https://www.contec.com/jp/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_chs_230531_jp.pdfVendor Advisory

Timeline

Published: Jun 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28651?

How severe is CVE-2023-28651?

CVE-2023-28651 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 64.80% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28651?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28651?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST