CVE-2021-20777: Gu-Global Gu

Medium severity, CVSS 4.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Improper authorization in handler for custom URL scheme vulnerability in GU App for Android versions from 4.8.0 to 5.0.2 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Affected products

• Gu-Global Gu: from 4.8.0, up to and including 5.0.2

Published 2021-07-07. Last modified 2026-06-17.