CVE intelligence and bounded remediation

CVE-2022-33322 — Mitsubishielectric Mac-587If-E Firmware security vulnerability

Medium CVSS 6.1

Cross-site scripting vulnerability in Mitsubishi Electric consumer electronics products (Air Conditioning, Wi-Fi Interface, Refrigerator, HEMS adapter, Remote control with Wi-Fi Interface, BATHROOM THERMO VENTILATOR, Rice cooker, Mitsubishi Electric HEMS control adapter, Energy Recovery Ventilator, Smart Switch and Air Purifier) allows a remote unauthenticated attacker to execute an malicious script on a user's browser to disclose information, etc. The wide range of models/versions of Mitsubishi Electric consumer electronics products are affected by this vulnerability. As for the affected product models/versions, see the Mitsubishi Electric's advisory which is listed in [References] section.

Severity
Medium
CVSS
6.1 (3.1)
Published
2022-11-08
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • mitsubishielectric / mac-587if-e_firmware
  • mitsubishielectric / mac-587if2-e_firmware
  • mitsubishielectric / mac-507if-e_firmware
  • mitsubishielectric / mac-588if-e_firmware
  • mitsubishielectric / s-mac-002if_firmware
  • mitsubishielectric / ma-ew85s-e_firmware

Showing 6 representative product identities from 119 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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