XSS in Advantech Eki-1521

CVE-2023-4203

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 ping tool of the web-interface.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-4203?
CVE-2023-4203 is a critical-severity vulnerability in Advantech Eki-1521, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-08-08.
How severe is CVE-2023-4203?
Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2023-4203 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.