CVE-2023-4202 Stored Cross-Site Scripting

Critical 9.0 Published Updated

Authenticated attackers can inject malicious scripts via the device name field, potentially compromising other users of the Advantech EKI web interface.

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

What is CVE-2023-4202?

CVE-2023-4202 is a critical cross-site scripting vulnerability in Advantech EKI-1521, published on 8 Aug 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Advantech EKI-1524, EKI-1522, EKI-1521 devices through 1.21 are affected by a Stored Cross-Site Scripting vulnerability, which can be triggered by authenticated users in the device name field of the web-interface.

Weakness: CWE-79

Which versions are affected by CVE-2023-4202?

It affects 3 products.

Products include Advantech Eki-1521 Firmware, Advantech Eki-1522 Firmware, Advantech Eki-1524 Firmware.

How do I fix CVE-2023-4202?

No fix has been published for CVE-2023-4202 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-2023-4202 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4202 exists.

Sources

Also known as GHSA-7cj7-3cq3-8fhp.

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