CVE intelligence and bounded remediation

CVE-2022-3073 — Weidmueller 19 Iot Md01 Lan H4 S0011 Firmware security vulnerability

Medium CVSS 6.1

Quanos "SCHEMA ST4" example web templates in version Bootstrap 2019 v2/2021 v1/2022 v1/2022 SP1 v1 or below are prone to JavaScript injection allowing a remote attacker to hijack existing sessions to e.g. other web services in the same environment or execute scripts in the users browser environment. The affected script is '*-schema.js'.

Severity
Medium
CVSS
6.1 (3.1)
Published
2022-12-14
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • weidmueller / 19_iot_md01_lan_h4_s0011_firmware
  • weidmueller / fp_iot_md01_4eu_s2_00000_firmware
  • weidmueller / fp_iot_md01_lan_s2_00000_firmware
  • weidmueller / fp_iot_md01_lan_s2_00011_firmware
  • weidmueller / fp_iot_md02_4eu_s3_00000_firmware
  • weidmueller / iot-gw30_firmware

Showing 6 representative product identities from 9 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cross-site scripting and unsafe browser output

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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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