---
id: CVE-2026-82771
title: Cross-site scripting vulnerability exists in Contec EC1000 series
summary: >-
  Cross-site scripting vulnerability exists in Contec EC1000 series. If this
  vulnerability is exploited, an arbitrary script may be executed on a logged-in
  user's web browser.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: 'Contec Co., Ltd.'
product: ECE1000
affected:
  - ECE1000 < 1.02
  - ECE1020 < 1.02
  - ECS1020 < 1.02
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:27:25.623'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82771'
references:
  - url: 'https://jvn.jp/en/vu/JVNVU99009004/'
    label: vultures@jpcert.or.jp
  - url: >-
      https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf
    label: vultures@jpcert.or.jp
tags:
  - nvd
  - cve.org
epss: 0.00235
epssPercentile: 0.12867
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T11:08:57.599351Z'
ingestedAt: '2026-09-14T15:23:07.461Z'
---

## Overview

Cross-site scripting vulnerability exists in Contec EC1000 series. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.