CVE-2026-73169 Cross-site scripting in EKI-1242EIMS
Remote authenticated attackers can inject malicious scripts into the Modbus interface, executing them in administrators' browsers to potentially hijack sessions or bypass security controls.
- 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-2026-73169?
CVE-2026-73169 is a medium-severity cross-site scripting vulnerability in Advantech EKI-1242EIMS, published on 16 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Nozomi Networks Labs identified a CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Modbus transaction management interface of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote authenticated attacker to store malicious script content that executes in the browser of any administrator who later opens an affected management page.
Weakness: CWE-79
Which versions are affected by CVE-2026-73169?
How do I fix CVE-2026-73169?
No fix has been published for CVE-2026-73169 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-2026-73169 being exploited?
There is no known exploitation of CVE-2026-73169 in the wild and no public exploit code.
Sources
Also known as GHSA-5fp2-4gpv-wpxm.