---
id: CVE-2026-79418
title: >-
  EMX Tecnologia Gestao X version <= 8.4 contains a Stored Cross-Site Scripting
  (XSS) vulnerability in the Help Chat functionality
summary: >-
  EMX Tecnologia Gestao X version <= 8.4 contains a Stored Cross-Site Scripting
  (XSS) vulnerability in the Help Chat functionality. Improper neutralization of
  user-controlled input during web page generation allows authenticated
  attackers …
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
vendor: emxtecnologia
product: gestao_x_business_suite
affected:
  - gestao_x_business_suite <= 8.4
published: '2026-09-04'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T19:20:40.700'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79418'
references:
  - url: >-
      https://drive.google.com/file/d/1mp-uS-tAthH9FAObfx1D3lOM7IIjRsmE/view?usp=sharing
    label: cve@mitre.org
  - url: 'https://emxtecnologia.com.br/gestao-x-business-suite/'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00383
epssPercentile: 0.29512
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-15T18:49:39.097451Z'
ingestedAt: '2026-09-08T15:33:26.962Z'
---

## Overview

EMX Tecnologia Gestao X version <= 8.4 contains a Stored Cross-Site Scripting (XSS) vulnerability in the Help Chat functionality. Improper neutralization of user-controlled input during web page generation allows authenticated attackers to execute arbitrary JavaScript in the context of other authenticated users, potentially resulting in session hijacking, account takeover, and unauthorized actions.

## Affected

- `gestao_x_business_suite <= 8.4`

## Remediation

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