Nike App fails to restrict custom URL schemes properly


Nike App by Nike, Inc. provides the function to access a requested URL using Custom URL Scheme.
The app does not restrict access to the function properly (CWE-939) which may be exploited to direct the app to access any sites.
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: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

Nike, Inc.
  • Nike for Android versions prior to 2.177
  • Nike for iOS versions prior to 2.177.1


A remote attacker may lead a user to access an arbitrary website via the vulnerable app. As a result, the user may fall victim to the social engineering attack.

[Update the Application]
Update the application to the latest version according to the information provided by the developer.
The developer has released the following versions:

* Nike App for Android version 2.177
* Nike App for iOS version 2.177.1
Vendor Information

Nike, Inc.
CWE (What is CWE?)

  1. Permissions(CWE-264) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2021-20834

  1. JVN : JVN#89126639
Revision History

  • [2021/10/08]
      Web page was published