Whale browser before 3.12.129.18 allowed extensions to replace JavaScript files of the HWP viewer website which could access to local HWP files. When the HWP files were opened, the replaced script could read the files.
A Built-in extension in Whale browser before 3.12.129.46 allows attackers to compromise the rendering process which could lead to controlling browser internal APIs.
Whale browser for iOS before 1.14.0 has an inconsistent user interface issue that allows an attacker to obfuscate the address bar which may lead to address bar spoofing.