[Japanese]

JVNDB-2025-000070

"Gunosy" App vulnerable to insertion of sensitive information into sent data

Overview

"Gunosy" App provided by Gunosy Inc. contains the following vulnerability.
  • Insertion of sensitive information into sent data (CWE-201) - CVE-2025-44017
YUNAO ZHOU of LAC Co., Ltd. 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 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
Affected Products


Gunosy Inc.
  • "Gunosy" App for Android versions prior to 7.34.0
  • "Gunosy" App for iOS versions prior to 7.34.0

Impact

If a user accesses a crafted URL, an attacker may obtain the JWT (JSON Web Token).
Solution

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

Gunosy Inc.
CWE (What is CWE?)

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

  1. CVE-2025-44017
References

  1. JVN : JVN#47404248
Revision History

  • [2025/09/02]
      Web page was published
  • [2025/09/08]
      Overview was modified

Date Public2025/09/02
Date First Published2025/09/02
Date Last Updated2025/09/09