PHP Vulnerability Responses by Company

Ｍ株式会社

Japanese companies / services
Aliases / services
M（ラルコバレーノ） / Ｍ株式会社 / M株式会社 / エンメ株式会社 / L'arcobaleno / ラルコバレーノ / M / L'arcobaleno
Official website
https://larcobaleno.jp/
Sources identifying the operating company

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

Listed services and systems

Response status
Official store reopened
Response information checked
2026-10-27 Rechecked: 2026-10-27

L'arcobaleno official store, whose listed seller is M Co., Ltd.; its corporate website also uses the name Emme.

On October 23, the store announced that checks and fixes to related plugins and integrations, plus maintenance, were complete and online sales had resumed.

What users should do

Place orders through the official store as usual.

Official service URL

Source URLs

  1. Official PHP response and scopehttps://larcobaleno.jp/Response evidence
  2. Operating entityhttps://larcobaleno.jp/p/about/terms/Service and operation documentation
  3. Official service and authorhttps://emme.jp/sub/?page=companyService and operation documentation
  4. Official M / Emme company nameshttps://emme.jp/sub/?page=recruitService and operation documentation
Related official sources
  1. Official PHP response and scopeOfficial notice
  2. Operating entityOfficial information directory
  3. Official service and authorOfficial information directory
  4. Official M / Emme company namesOfficial information directory

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