What’s Vulnerable › Vulnerabilities

CVE-2016-4839

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-12 · updated 2026-06-17
• Weakness: CWE-200

Description

The Android Apps Money Forward (prior to v7.18.0), Money Forward for The Gunma Bank (prior to v1.2.0), Money Forward for SHIGA BANK (prior to v1.2.0), Money Forward for SHIZUOKA BANK (prior to v1.4.0), Money Forward for SBI Sumishin Net Bank (prior to v1.6.0), Money Forward for Tokai Tokyo Securities (prior to v1.4.0), Money Forward for THE TOHO BANK (prior to v1.3.0), Money Forward for YMFG (prior to v1.5.0) provided by Money Forward, Inc. and Money Forward for AppPass (prior to v7.18.3), Money Forward for au SMARTPASS (prior to v7.18.0), Money Forward for Chou Houdai (prior to v7.18.3) provided by SOURCENEXT CORPORATION do not properly implement the WebView class, which allows an attacker to disclose information stored on the device via a specially crafted application.

Affected products

• Moneyforward Money Forward For Apppass: before 7.18.3 — fixed in 7.18.3
• Moneyforward Money Forward For Au Smartpass: before 7.18.0 — fixed in 7.18.0
• Moneyforward Money Forward For Chou Houdai: before 7.18.3 — fixed in 7.18.3
• Moneyforward Money Forward For Sbi Sumishin Net Bank: before 1.6.0 — fixed in 1.6.0
• Moneyforward Money Forward For Shiga Bank: before 1.2.0 — fixed in 1.2.0
• Moneyforward Money Forward For Shizuoka Bank: before 1.4.0 — fixed in 1.4.0
• Moneyforward Money Forward For The Gunma Bank: before 1.2.0 — fixed in 1.2.0
• Moneyforward Money Forward For The Toho Bank: before 1.3.0 — fixed in 1.3.0
• Moneyforward Money Forward For Tokai Tokyo Securities: before 1.4.0 — fixed in 1.4.0
• Moneyforward Money Forward For Ymfg: before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: Moneyforward Money Forward For Apppass 7.18.3; Moneyforward Money Forward For Au Smartpass 7.18.0; Moneyforward Money Forward For Chou Houdai 7.18.3; Moneyforward Money Forward For Sbi Sumishin Net Bank 1.6.0; Moneyforward Money Forward For Shiga Bank 1.2.0; Moneyforward Money Forward For Shizuoka Bank 1.4.0; Moneyforward Money Forward For The Gunma Bank 1.2.0; Moneyforward Money Forward For The Toho Bank 1.3.0; Moneyforward Money Forward For Tokai Tokyo Securities 1.4.0; Moneyforward Money Forward For Ymfg 1.5.0. Check the vendor advisory for mitigations.

References

• http://corp.moneyforward.com/info/20160920-mf-android/
• http://www.securityfocus.com/bid/93035
• http://www.sourcenext.com/support/i/160725_1
• https://jvn.jp/en/jp/JVN61297210/index.html
• http://corp.moneyforward.com/info/20160920-mf-android/
• http://www.securityfocus.com/bid/93035
• http://www.sourcenext.com/support/i/160725_1
• https://jvn.jp/en/jp/JVN61297210/index.html

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