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Cybozu bug bounty programs

cybozu.com Updated

Cybozu runs one public program: a self-hosted bug bounty paying up to ¥2,000,000.

Top reward
¥2,000,000
Self-hosted
Programs
1
1 pays cash
Targets in scope
24
6 types
Last change
None yet
Tracked since Nov 2026

Where to report

The one public program Cybozu runs.

  • Cybozu

    Self-hosted · Bug bounty

    Open

    Top reward

    ¥2M

Amounts are the top reward per severity in the currency each program pays. First response is the platform's measured average when it publishes one, else what the policy promises.

What is in scope

24 targets. 7 excluded.

  • *.cybozu.com

    Wildcards

  • cloud services

    Domains

  • cybozu.co.jp/customer/howtologin

    Domains

  • cybozu.com

    Domains

  • cybozu.dev/ja/garoon/docs/overview

    Domains

  • cybozu.dev/ja/kintone/docs

    Domains

  • kintone-sol.cybozu.co.jp/apps

    Domains

  • kintone.cybozu.co.jp/try-kintone-app-builder

    Domains

  • www.cybozu.com

    Domains

  • Garoon API

    APIs

  • https://cybozu.dev/ja/common/docs/user-api

    APIs

  • kintone API（REST API / JavaScript API）

    APIs

  • https://play.google.com/store/apps/details?id=com.cybozu.garoon.mobile

    Android

  • https://play.google.com/store/apps/details?id=com.cybozu.kintone.mobile

    Android

  • https://play.google.com/store/apps/details?id=com.cybozu.office.mobile

    Android

  • https://apps.apple.com/jp/app/kintone/id674312865

    iOS

  • https://apps.apple.com/us/app/garoon/id6444327172

    iOS

  • https://apps.apple.com/us/app/id1040053533

    iOS

  • Cloud edition Garoon Mobile

    Products and areas

  • Cybozu Office Mobile

    Products and areas

  • Cybozu Office Mobile *Japanese version only

    Products and areas

  • kintone Mobile

    Products and areas

  • Peripheral Services

    Products and areas

  • Service Introduction Web Sites

    Products and areas

No target matches. Try part of a host name, such as the company name.

Out of scope 7

Don't test these. A program can exclude a host another program covers; the program you report to decides.

  • *.cybozu.co.jp

  • *.kintone.com

  • cybozu-dev.com

  • garoon.cybozu.co.jp/support/package/download

  • kintone.com

  • mailwise.cybozu.co.jp/exist/package

  • office.cybozu.co.jp/trial/download

Recent changes

Reward and scope changes across every Cybozu program, newest first.

No changes recorded yet. New targets and reward moves show up here and in the RSS feed.

Recent CVEs

Published vulnerabilities in Cybozu products, from the NVD.

Search NVD
  • CVE-2026-22888 Medium

    Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, potentially blocking access to the product.

  • CVE-2026-20711 Medium

    Cross-site scripting vulnerability exists in E-mail function of Cybozu Garoon 5.0.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.

  • CVE-2026-22881 Medium

    Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitrary users’ passwords.

  • CVE-2024-39817 Medium

    Insertion of sensitive information into sent data issue exists in Cybozu Office 10.0.0 to 10.8.6, which may allow a user who can login to the product to view data that the user does not have access by conducting 'search' under certain conditions in Custom App.

  • CVE-2024-39457 Medium

    Cybozu Garoon 6.0.0 to 6.0.1 contains a cross-site scripting vulnerability in PDF preview. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user’s web browser.

  • CVE-2024-31402 Medium

    Incorrect authorization vulnerability in Cybozu Garoon 5.0.0 to 5.15.2 allows a remote authenticated attacker to delete the data of Shared To-Dos.

  • CVE-2024-31397 Medium

    Improper handling of extra values issue exists in Cybozu Garoon 5.0.0 to 5.15.2. If this vulnerability is exploited, a user who can log in to the product with the administrative privilege may be able to cause a denial-of-service (DoS) condition.

  • CVE-2024-31398 Medium

    Insertion of sensitive information into sent data issue exists in Cybozu Garoon 5.0.0 to 5.15.2. If this vulnerability is exploited, a user who can log in to the product may obtain information on the list of users.

About this page

This page gathers every public program listed under cybozu.com: platform programs, self-hosted policies and security.txt contacts. Each program's own policy decides what is in scope and what it pays; check it before you test.

Something wrong or missing? Report a correction.