Money Forward Apps for Android vulnerable in the WebView class


Money Forward Apps for Android contain a vulnerability in the WebView class.

Kenta Suefusa, Akinori Konishi and Tomonori Shiomi of Sprout Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.4 (Medium) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

  • Money Forward for AppPass (prior to v7.18.3)
  • Money Forward for Chou Houdai (prior to v7.18.3)
  • Money Forward for au SMARTPASS (prior to v7.18.0)
Money Forward, Inc.
  • Money Forward (prior to v7.18.0) (Android App)
  • Money Forward for SBI Sumishin Net Bank (prior to v1.6.0) (Android App)
  • Money Forward for SHIGA BANK (prior to v1.2.0) (Android App)
  • Money Forward for SHIZUOKA BANK (prior to v1.4.0) (Android App)
  • Money Forward for THE TOHO BANK (prior to v1.3.0) (Android App)
  • Money Forward for The Gunma Bank (prior to v1.2.0) (Android App)
  • Money Forward for Tokai Tokyo Securities (prior to v1.4.0) (Android App)
  • Money Forward for YMFG (prior to v1.5.0) (Android App)


If a user of the affected product uses another malicious Android application, information managed by the affected product may be disclosed.

[Update the application]
Update to the latest version according to the information provided by the developer.
Vendor Information

CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-4839

  1. JVN : JVN#61297210
  2. National Vulnerability Database (NVD) : CVE-2016-4839
Revision History

  • [2016/09/20]
      Web page was published
      References : Content was added