Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-4203

20
FAUCET Score

CVE-2023-4203 describes a Stored Cross-Site Scripting (XSS) vulnerability affecting Advantech EKI-1521, EKI-1522, and EKI-1524 devices running firmware versions up to 1.21. Authenticated users can trigger this flaw by injecting malicious scripts into the ping tool of the web interface. Rated as MEDIUM severity (CVSS 5.4), successful exploitation could lead to client-side attacks, impacting confidentiality and integrity with low impact. There is currently no evidence of active exploitation, and public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable. Community discussion is minimal, with only one mention identified.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.24CPE matchmatch criteria
cpe:2.3:o:advantech:eki-1524_firmware:*:*:*:*:*:*:*:*
<= 1.24CPE matchmatch criteria
cpe:2.3:o:advantech:eki-1522_firmware:*:*:*:*:*:*:*:*
<= 1.24CPE matchmatch criteria
cpe:2.3:o:advantech:eki-1521_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 90th percentile among its peer group of 15,224 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/174153/Advantech-EKI-1524-CE-EKI-1522-EKI-1521-Cross-Site-Scripting.html
cyberdanube.com / en/en-st-polten-uas-multiple-vulnerabilities-in-advantech-eki-15xx-series
ExploitThird Party Advisory
seclists.org / fulldisclosure/2023/Aug/13