Shikoku Create Association: unauthorized website administrator puts 146 submissions from 92 people at risk
A website flaw allowed an unauthorized administrator account. Data in 146 inquiry/job-application submissions from 92 people may have been exposed.
Disclosed
2026-11-09
Organizations involved
1
Leaked or at risk
146
146
Downtime
Unknown
People affected or at risk
92
92
Submissions, people and confirmed findings
An unauthorized administrator account was found on 4 November, apparently created through a website flaw on 20–21 July. At-risk data comprises 124 inquiries and 22 job applications: 146 submissions from 92 people. Fields include names, contacts, employers, job preferences and free text, varying by form. Submissions are not a person count. [1]
Available records show no use of the account to log into administration, tamper with the site, install malicious programs or acquire personal data; exposure cannot be ruled out. On 4 November, it removed the account, changed credentials, updated software, restricted administration and stopped storing form submissions on the site. The PPC was notified and individual notification is planned. [1]
Timeline
- Started 2026-07-20
- Detected 2026-11-04
- Disclosed 2026-11-09
- 112 days
Attack or cause
- Method
- [Web app exploit]
- Impact
- [Data leak]
- Entry point
- Web app
Data exposed or at risk
Organizations involved
[Breached][Major]Kagawa, TakamatsuOther services146 leaked
Shikoku Create Association
Sources
- [1][Official]不正アクセスによる個人情報漏えいのおそれに関するお知らせとお詫びShikoku Create Association · 2026-11-09