What is CVE-2016-4838?

CVE-2016-4838 is a high-severity vulnerability in Moneyforward Money Forward For Apppass, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2017-05-12.

How severe is CVE-2016-4838?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Moneyforward Money Forward For Apppass

CVE-2016-4838

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 allows an attacker to execute unintended operations via a specially crafted application.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.sourcenext.com/support/i/160725_1 (VDB Entry, Third Party Advisory)
jvn.jp/en/jp/JVN49343562/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
corp.moneyforward.com/info/20160920-mf-android/ (VDB Entry, Third Party Advisory)
www.securityfocus.com/bid/93034 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-4838?: CVE-2016-4838 is a high-severity vulnerability in Moneyforward Money Forward For Apppass, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2017-05-12.
How severe is CVE-2016-4838?: High severity. CVSS v3 base score is 7.8 out of 10.