When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140.

Inappropriate implementation in Skia in Google Chrome prior to 88.0.4324.146 allowed a local attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Incorrect security UI in Loader in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Insufficient data validation in QR scanner in Google Chrome on iOS prior to 90.0.4430.72 allowed an attacker displaying a QR code to perform domain spoofing via a crafted QR code.

Insufficient policy enforcement in navigations in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML page.

Inappropriate implementation in Compositing in Google Chrome on Linux and Windows prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Inappropriate implementation in Autofill in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to spoof security UI via a crafted HTML page.

Insufficient data validation in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Inappropriate implementation in Network in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to potentially access local UDP ports via a crafted HTML page.

Inappropriate implementation in full screen mode in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Inappropriate implementation in Autofill in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to spoof security UI via a crafted HTML page.

Incorrect security UI in Page Info in Google Chrome on iOS prior to 88.0.4324.96 allowed a remote attacker to spoof security UI via a crafted HTML page.

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Inappropriate implementation in iframe sandbox in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.

Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.

Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

A renderer initiated back navigation was incorrectly allowed to cancel a browser initiated one in Navigation in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to confuse the user about the origin of the current page via a crafted HTML page.

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Insufficiently strict origin checks during JIT payment app installation in Payments in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to install a service worker for a domain that can host attacker controled files via a crafted HTML page.

Insufficient policy enforcement in payments in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass file extension policy via a crafted HTML page.

Insufficient policy enforcement in extensions in Google Chrome prior to 90.0.4430.93 allowed an attacker who convinced a user to install a malicious extension to bypass navigation restrictions via a crafted Chrome Extension.

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.

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Incorrect security UI in Network Config UI in Google Chrome on ChromeOS prior to 90.0.4430.72 allowed a remote attacker to potentially compromise WiFi connection security via a malicious WAP.

Cross-site scripting (XSS) vulnerability in search.php in Google Custom Search Engine allows remote attackers to inject arbitrary web script or HTML via the q parameter. NOTE: this issue is disputed by the Google Security Team, who states that "Google does not provide the 'search.php' script referenced. When a user creates a custom search engine, we provide them with a block of javascript to include on their site. Some users write additional code around this block of javascript to further customize their website.

Incorrect dialog placement in WebContents in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to obscure the full screen warning via a crafted HTML page.

Failure to dismiss http auth dialogs on navigation in Network Authentication in Google Chrome on Android prior to 71.0.3578.80 allowed a remote attacker to confuse the user about the origin of an auto dialog via a crafted HTML page.

Incorrect handling of alert box display in Blink in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to present confusing browser UI via a crafted HTML page.

Insufficient data validation in filesystem URIs in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

Lack of clearing the previous site before loading alerts from a new one in Blink in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to perform domain spoofing via a crafted HTML page.

Incorrect enforcement of CSP for <object> tags in Blink in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to bypass content security policy via a crafted HTML page.

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

Incorrect handling of CSP enforcement during navigations in Blink in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to bypass content security policy via a crafted HTML page.

Incorrect handling of bidirectional domain names with RTL characters in Omnibox in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

The CustomButton::AcceleratorPressed function in ui/views/controls/button/custom_button.cc in Google Chrome before 48.0.2564.82 allows remote attackers to spoof URLs via vectors involving an unfocused custom button.

Missing confusable characters in Internationalization in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

Incorrect handling of history on iOS in Navigation in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

The Omnibox implementation in Google Chrome before 48.0.2564.82 allows remote attackers to spoof a document's origin via unspecified vectors.

Incorrect security UI in navigation in Google Chrome prior to 64.0.3282.119 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Incorrect URL parsing in WebKit in Google Chrome on iOS prior to 67.0.3396.62 allowed a remote attacker to perform domain spoofing via a crafted HTML page.

The HistoryController::UpdateForCommit function in content/renderer/history_controller.cc in Google Chrome before 50.0.2661.94 mishandles the interaction between subframe forward navigations and other forward navigations, which allows remote attackers to spoof the address bar via a crafted web site.

Incorrect dialog placement in Cast UI in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to obscure the full screen warning via a crafted HTML page.

ios/web/web_state/ui/crw_web_controller.mm in Google Chrome before 52.0.2743.82 on iOS does not ensure that an invalid URL is replaced with the about:blank URL, which allows remote attackers to spoof the URL display via a crafted web site.

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted domain name.

Incorrect handling of history on iOS in Navigation in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

The Web Store inline-installer implementation in the Extensions UI in Google Chrome before 49.0.2623.75 does not block installations upon deletion of an installation frame, which makes it easier for remote attackers to trick a user into believing that an installation request originated from the user's next navigation target via a crafted web site.

browser/browsing_data/browsing_data_remover.cc in Google Chrome before 51.0.2704.63 deletes HPKP pins during cache clearing, which makes it easier for remote attackers to spoof web sites via a valid certificate from an arbitrary recognized Certification Authority.

Mozilla Firefox before 44.0 on Android allows remote attackers to spoof the address bar via the scrollTo method.