CVE-2023-28651 Cross-site scripting in CONPROSYS HMI System (CHS)

Medium 4.8 Published 1 Jun 2023 Updated 9 Jan 2025

An attacker with admin privileges can inject scripts that execute in other admins' browsers, potentially leading to account takeover.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-28651?

CVE-2023-28651 is a medium-severity cross-site scripting vulnerability in Contec Co., Ltd. CONPROSYS HMI System (CHS), published on 1 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2023-28651?

It affects 1 product.

Products include Contec Conprosys Hmi System.

How do I fix CVE-2023-28651?

No fix has been published for CVE-2023-28651 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-28651 being exploited?

There is no known exploitation of CVE-2023-28651 in the wild and no public exploit code.

Sources

Also known as GHSA-8xq3-xxw7-pvf5.