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CVE-2023-4202

20
FAUCET Score

CVE-2023-4202 is a Stored Cross-Site Scripting (XSS) vulnerability affecting Advantech EKI-1521, EKI-1522, and EKI-1524 devices running firmware versions through 1.21. An authenticated attacker can inject malicious scripts into the device name field of the web interface. This vulnerability has a CVSS score of 5.4 (MEDIUM), indicating a low-complexity attack requiring user interaction, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Despite this, the CVE has garnered significant community discussion, with 10 mentions, suggesting awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.21CPE matchmatch criteria
cpe:2.3:o:advantech:eki-1524_firmware:*:*:*:*:*:*:*:*
<= 1.21CPE matchmatch criteria
cpe:2.3:o:advantech:eki-1522_firmware:*:*:*:*:*:*:*:*
<= 1.21CPE 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
0.82%
Probability of exploitation in next 30 days
EPSS Percentile
53.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0082 is in the 88th 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