CVE-2026-82763
Received Received - Intake

Cross-Site Scripting in Contec FX5000, FX4000, and FX3000 Series

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: JPCERT/CC

Description
Cross-site scripting vulnerability exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-82763
EUVD
EUVD-2026-77242

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
contec fx5000 *
contec fx4000 *
contec fx3000 *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a cross-site scripting (XSS) vulnerability in Contec FX5000, FX4000, and FX3000 series devices. It allows an attacker to inject malicious scripts into a logged-in user's web browser.

Impact Analysis

An attacker could exploit this to execute arbitrary scripts in your browser, potentially stealing session cookies, credentials, or sensitive data displayed on the page.

Mitigation Strategies

Apply vendor patches or updates for Contec FX5000, FX4000, and FX3000 series if available. Disable unnecessary web interfaces or restrict access to trusted networks. Monitor network traffic for suspicious activity and educate users on recognizing potential XSS attempts.

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