CVE intelligence and bounded remediation

CVE-2016-5819 — Moxa Oncell G3100V2 Firmware security vulnerability

Medium CVSS 6.1

Moxa G3100V2 Series, editions prior to Version 2.8, and OnCell G3111/G3151/G3211/G3251 Series, editions prior to Version 1.7 allows a reflected cross-site scripting attack which may allow an attacker to execute arbitrary script code in the user’s browser within the trust relationship between their browser and the server.

Severity
Medium
CVSS
6.1 (3.0)
Published
2019-03-21
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • moxa / oncell_g3100v2_firmware
  • moxa / oncell_g3111_firmware
  • moxa / oncell_g3151_firmware
  • moxa / oncell_g3211_firmware
  • moxa / oncell_g3251_firmware

Matched remediation archetype

Cross-site scripting and unsafe browser output

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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