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Incorrect security UI in downloads in Google Chrome on Android prior to 90.0.4430.93 allowed a remote attacker to perform domain spoofing via a crafted HTML page.
CVSS 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N).
CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N).
This Android application will remove a user account when it receives an intent to do so:
}}destroyUserData(userID);
This application does not check the origin of the intent, thus allowing any malicious application to remove a user. Always check the origin of an intent, or create a whitelist of trusted applications using the manifest.xml file.
These Android and iOS applications intercept URL loading within a WebView and perform special actions if a particular URL scheme is used, thus allowing the Javascript within the WebView to communicate with the application:
}// Android
}}return false;return true;
}// iOS
return YES;
return NO;
UIWebView *webView = [self writeDataToView:[URL query]];// Make data available back in webview.
A call into native code can then be initiated by passing parameters within the URL:
window.location = examplescheme://method?parameter=value
Because the application does not check the source, a malicious website loaded within this WebView has the same access to the API as a trusted site.
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