CVE-2026-36226 Cross-site scripting in n/a

Medium 6.1 Published Updated

A remote attacker can exploit a Cross-Site Scripting vulnerability in Advantech WebAccess/SCADA to obtain sensitive information via the decryption field.

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

What is CVE-2026-36226?

CVE-2026-36226 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross Site Scripting vulnerability in Advantech WebAccess/SCADA 8.0-2015.08.16 allows a remote attacker to obtain sensitive information via the decryption field in the Create New Project User component

Weakness: CWE-79

Which versions are affected by CVE-2026-36226?

How do I fix CVE-2026-36226?

No fix has been published for CVE-2026-36226 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-2026-36226 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36226 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-jgfx-4prm-49vg.

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