Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-79418

CVE-2026-79418HIGH

n/a n/a — EMX Tecnologia Gestao X version <= 8.4 contains a Stored Cross-Site Scripting (XSS) vulnerability in the Help Chat functionality.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   R  C  H  H  N    8.7   .0038   30.0     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Aug 25  Reserved by mitre
  Sep 4   Published (CNA: mitre)
  Sep 15  RESCORED — CVE-2026-79418. CVSS 5.4 → 8.7 (NVD).
  Sep 17  EXPLOIT PUBLISHED — CVE-2026-79418. Public exploit reference added.

CWE-79 · CNA: mitre · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
August 25, 2026	Reserved	Reserved by mitre
September 4, 2026	Published	Published (CNA: mitre)
September 15, 2026	RESCORED	RESCORED — CVE-2026-79418. CVSS 5.4 → 8.7 (NVD).
September 17, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-79418. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-79

References (2)

https://drive.google.com/file/d/1mp-uS-tAthH9FAObfx1D3lOM7IIjRsmE/view?usp=sharing [Exploit, Technical Description, Third Party Advisory]
https://emxtecnologia.com.br/gestao-x-business-suite/ [Product]

Authoritative record: CVE-2026-79418 at cve.org

Weaknesses: CWE-79

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-79418 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.