[Japanese]

JVNDB-2026-000123

Android App "Myna Point" vulnerable to improper access restriction

Overview

Android App "Myna Point" provided by Digital Agency contains the following vulnerability.
  • Improper Authorization in Handler for Custom URL Scheme (CWE-939) - CVE-2026-73335
RyotaK of GMO Flatt Security Inc. reported this vulnerability to the developer and IPA.
JPCERT/CC coordinated with the developer to publish the advisory under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 5.3 (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: Low
CVSS v4 Severity
Base Metrics: 4.6 (Medium) [IPA Score]
  • Access Vector (AV): Local
  • Attack Complexity (AC): Low
  • Attack Requirements (AT): None
  • Privileges Required (PR): None
  • User Interaction (UI): Active
    • Vulnerable System Impact
  • Confidentiality Impact (VC): Low
  • Integrity Impact (VI): Low
  • Availability Impact (VA): Low
    • Subsequent System Impact
  • Confidentiality Impact (SC): None
  • Integrity Impact (SI): None
  • Availability Impact (SA): None
Affected Products


Digital Agency
  • Android App "Myna Point" versions 2.0.6 and prior

Impact

A malicious application installed on the user's Android device may exploit the affected application's functionality through an Intent, potentially allowing arbitrary JavaScript to be executed within the affected application.
Solution

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

Digital Agency
CWE (What is CWE?)

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

  1. CVE-2026-73335
References

  1. JVN : JVN#67155805
Revision History

  • [2026/08/26]
      Web page was published

Date Public2026/08/26
Date First Published2026/08/26
Date Last Updated2026/08/26