The Installer in Whale allows DLL hijacking.

The Whale browser installer 0.4.3.0 and earlier versions allows DLL hijacking.

Whale Browser before 1.3.48.4 displays no URL information but only a title of a web page on the browser's address bar when visiting a non-http page, which allows an attacker to display a malicious web page with a fake domain name.

Whale Browser Installer before 1.2.0.5 versions don't support signature verification for Flash installer.

NAVER Whale browser mobile app before 1.10.6.2 allows the attacker to bypass its browser unlock function via incognito mode.

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.

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 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.

The Web Request API in Whale browser before 3.12.129.18 allowed to deny access to the extension store or redirect to any URL when users access the store.

Whale Bridge, a default extension in Whale browser before 3.12.129.18, allowed to receive any SendMessage request from the content script itself that could lead to controlling Whale Bridge if the rendering process compromises.

The devtools API in Whale browser before 3.12.129.18 allowed extension developers to inject arbitrary JavaScript into the extension store web page via devtools.inspectedWindow, leading to extensions downloading and uploading when users open the developer tool.