JVN#91691168: goo blog App fails to restrict custom URL schemes properly

goo blog App by NTT Resonant Incorporated provides the function to access a requested URL using Custom URL Scheme.
The App does not restrict access to the function properly (CWE-284) which may be exploited to direct the App to access any sites.

Impact

A remote attacker may lead a user to access an arbitrary website via the vulnerable App. As a result, the user may become a victim of a phishing attack.

Solution

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.

• goo blog App for Android ver.1.2.26
• goo blog App for iOS ver.1.3.4

Products Affected

• goo blog App for Android ver.1.2.25 and earlier
• goo blog App for iOS ver.1.3.3 and earlier