> JapanHacked_
[Resolved][Severity: Critical][Web app exploit]

EDUWARD Press: the payment application of its online store was tampered with, possibly exposing card data and logins of 13,433 customers

A flaw in the site let attackers tamper with the payment application, and data of 13,433 customers and 13,193 card records may have leaked.

Disclosed

2024-12-12

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. The Metropolitan Police Department's cybercrime unit told it that a malicious program might be embedded in the site, and it closed the online store. The same day it confirmed the malicious program was installed. [1]

  2. It sent a first report to customers who had registered email addresses and posted a first notice on its corporate site. [1]

  3. The investigating firm finished its investigation and it confirmed that information of purchasers from March 20, 2021 to November 24, 2024 may have leaked. [1]

  4. It announced the investigation results. [1] [2]

Impact

The 13,433 people covered may have had email addresses, login passwords, card holder names, card numbers, expiry dates and security codes leaked, with card data for 13,193 of them. Some cards may also have been misused. Payments went through a payment service provider, so the company did not itself hold card data. [1]

Timeline

  1. Detected 2024-12-04
  2. Disclosed 2024-12-12
  3. 8 days

Attack or cause

Method
[Web app exploit]
Impact
[Data leak][Fraud]
Entry point
Web app

Data exposed or at risk

[E-mail address][Passwords][Name][Payment card]

Organizations involved

Open in organization search

Sources

  1. [1][Official]弊社が運営する「エデュワードプレスオンライン」への不正アクセスによる個人情報漏洩に関するお詫びとお知らせEDUWARD Press Co., Ltd. · 2025-04-03
  2. [2][News]「エデュワードプレスオンライン」に不正アクセス、13,193 件のカード情報が漏えいScanNetSecurity · 2025-04-18 08:05