CVE Vulnerability

CVE-2021-20835

Improper authorization in handler for custom URL scheme vulnerability in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version) versions prior to 4.49.1 allows a remote attacker to lead a user to access an arbitrary website and the website launches an arbitrary Activity of the app via the vulnerable App, which may result in Mercari account's access token being obtained.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://jvn.jp/en/jp/JVN49465877/index.html Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mercari:mercari:*:*:*:*:*:android:*:*
Information

Published : 2021-11-24 04:15

Updated : 2022-05-03 04:04

NVD link : CVE-2021-20835

Mitre link : CVE-2021-20835

Products Affected
No products.
CWE
CWE-862