What is CVE-2026-79419?

CVE-2026-79419 is a high-severity vulnerability in Emxtecnologia Gestao X Business Suite, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-09-04.

How severe is CVE-2026-79419?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Emxtecnologia Gestao X Business Suite

CVE-2026-79419

A reflected cross-site scripting (XSS) vulnerability exists in EMX Tecnologia Gestao X Business Suite 8.4 and earlier. The vulnerability is caused by insufficient validation and sanitization of the mensagem parameter in the /Configuracao/Imagens.aspx endpoint, allowing an authenticated attacker to inject arbitrary JavaScript code that is reflected and executed in the context of a victim's browser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-09-04 · last modified 2026-09-17.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.9th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Emxtecnologia Gestao X Business Suite

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

drive.google.com/file/d/1QVH1MRo3G4KqmBORkhXITzcYmO_BDjWc/view (Technical Description, Exploit, Third Party Advisory)
emxtecnologia.com.br/gestao-x-business-suite/ (Product)

Frequently asked questions

What is CVE-2026-79419?: CVE-2026-79419 is a high-severity vulnerability in Emxtecnologia Gestao X Business Suite, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-09-04.
How severe is CVE-2026-79419?: High severity. CVSS v3 base score is 8.7 out of 10.