Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 does not properly parse URLs with leading whitespace or control characters, which might allow remote attackers to misrepresent URLs and simplify phishing attacks.

By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

When arbitrary text is sent over an FTP connection and a page reload is initiated, it is possible to create a modal alert message with this text as the content. This could potentially be used for social engineering attacks. This vulnerability affects Firefox < 66.

Insufficient policy enforcement in Blink in Google Chrome prior to 73.0.3683.75 allowed a remote attacker to bypass content security policy via a crafted HTML page.

Excessive data validation in URL parser in Google Chrome prior to 75.0.3770.80 allowed a remote attacker who convinced a user to input a URL to bypass website URL validation via a crafted URL.

Incorrect inheritance of a new document's policy in Content Security Policy in Google Chrome prior to 73.0.3683.75 allowed a remote attacker to bypass content security policy via a crafted HTML page.

A mechanism where when a new tab is loaded through JavaScript events, if fullscreen mode is then entered, the addressbar will not be rendered. This would allow a malicious site to displayed a spoofed addressbar, showing the location of an arbitrary website instead of the one loaded. Note: this issue only affects Firefox for Android. Desktop Firefox is unaffected. This vulnerability affects Firefox < 54.

In all Android releases from CAF using the Linux kernel, a KGSL ioctl was not validating all of its parameters.

Insufficient Policy Enforcement in Omnibox in Google Chrome prior to 60.0.3112.78 for Mac, Windows, Linux, and Android allowed a remote attacker to perform domain spoofing via IDN homographs in a crafted domain name.

Insufficient Policy Enforcement in Omnibox in Google Chrome prior to 59.0.3071.115 for Mac allowed a remote attacker to perform domain spoofing via a crafted domain name containing a U+0620 character, aka Apple rdar problem 32458012.

Inappropriate implementation in Blink in Google Chrome prior to 59.0.3071.86 for Mac, Windows, and Linux, and 59.0.3071.92 for Android, allowed a remote attacker to display UI on a non attacker controlled tab via a crafted HTML page.

Inappropriate implementation in modal dialog handling in Blink in Google Chrome prior to 60.0.3112.78 for Mac, Windows, Linux, and Android allowed a remote attacker to prevent a full screen warning from being displayed via a crafted HTML page.

Insufficient Policy Enforcement in Omnibox in Google Chrome prior to 59.0.3071.86 for Mac, Windows, and Linux, and 59.0.3071.92 for Android, allowed a remote attacker to perform domain spoofing via IDN homographs in a crafted domain name.

Malicious sites can display a spoofed addressbar on a page when the existing location bar on the new page is scrolled out of view if an HTML editable page element is user selected. Note: This attack only affects Firefox for Android. Other operating systems are not affected. This vulnerability affects Firefox < 53.

Inappropriate implementation of unload handler handling in permission prompts in Google Chrome prior to 60.0.3112.78 for Linux, Windows, and Mac allowed a remote attacker to display UI on a non attacker controlled tab via a crafted HTML page.

Inappropriate implementation in Blink in Google Chrome prior to 59.0.3071.86 for Mac, Windows, and Linux, and 59.0.3071.92 for Android, allowed a remote attacker to display UI on a non attacker controlled tab via a crafted HTML page.

An insufficient watchdog timer in navigation in Google Chrome prior to 58.0.3029.81 for Linux, Windows, and Mac allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Insufficient Policy Enforcement in Omnibox in Google Chrome prior to 60.0.3112.78 for Mac, Windows, Linux, and Android allowed a remote attacker to perform domain spoofing via IDN homographs in a crafted domain name.

Insufficient Policy Enforcement in Omnibox in Google Chrome prior to 59.0.3071.104 for Mac allowed a remote attacker to perform domain spoofing via a crafted domain name.

Inappropriate implementation of the web payments API on blob: and data: schemes in Web Payments in Google Chrome prior to 60.0.3112.78 for Mac, Windows, Linux, and Android allowed a remote attacker to spoof the contents of the Omnibox via a crafted HTML page.

Google Chrome prior to 57.0.2987.100 incorrectly handled back-forward navigation, which allowed a remote attacker to display incorrect information for a site via a crafted HTML page.

Inappropriate implementation in interstitials in Google Chrome prior to 60.0.3112.78 for Mac allowed a remote attacker to spoof the contents of the omnibox via a crafted HTML page.

Lack of an appropriate action on page navigation in Blink in Google Chrome prior to 58.0.3029.81 for Windows and Mac allowed a remote attacker to potentially confuse a user into making an incorrect security decision via a crafted HTML page.

Insufficient data validation in extensions in Google Chrome prior to 77.0.3865.75 allowed a remote attacker to disable extensions via a crafted HTML page.

Insufficient policy enforcement in Omnibox in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to perform domain spoofing via IDN homographs in a crafted domain name.

Insufficient Policy Enforcement in Extensions in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to perform domain spoofing in permission dialogs via IDN homographs in a crafted Chrome Extension.

Incorrect implementation in Blink in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

If the ALT and "a" keys are pressed when users receive an extension installation prompt, the extension will be installed without the install prompt delay that keeps the prompt visible in order for users to accept or decline the installation. A malicious web page could use this with spoofing on the page to trick users into installing a malicious extension. This vulnerability affects Firefox < 67.

Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 do not properly handle duplicate values in X-Frame-Options headers, which makes it easier for remote attackers to conduct clickjacking attacks via a FRAME element referencing a web site that produces these duplicate values.

An issue where a "<select>" dropdown menu can be used to cover location bar content, resulting in potential spoofing attacks. This attack requires e10s to be enabled in order to function. This vulnerability affects Firefox < 50.

It is possible to spoof the filename of an attachment and display an arbitrary attachment name. This could lead to a user opening a remote attachment which is a different file type than expected. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

The view-source feature in Google Chrome before 16.0.912.63 allows remote attackers to spoof the URL bar via unspecified vectors.

A JavaScript focused window could overlap the fullscreen notification in Fullscreen in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to obscure the full screen warning via a crafted HTML page.

Lack of timeout on extension install prompt in Extensions in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to trigger installation of an unwanted extension via a crafted HTML page.

Google Chrome before 14.0.835.163 allows user-assisted remote attackers to spoof the URL bar via vectors related to the forward button.

Google Chrome before 18.0.1025.142 does not properly validate the renderer's navigation requests, which has unspecified impact and remote attack vectors.

Google Chrome before 13.0.782.107 does not ensure that the speech-input bubble is shown on the product's screen, which might make it easier for remote attackers to make audio recordings via a crafted web page containing an INPUT element.

The JSSubScriptLoader in Mozilla Firefox 4.x through 6 and SeaMonkey before 2.4 does not properly handle XPCNativeWrappers during calls to the loadSubScript method in an add-on, which makes it easier for remote attackers to gain privileges via a crafted web site that leverages certain unwrapping behavior.

The extensions implementation in Google Chrome before 13.0.782.107 does not properly validate the URL for the home page, which allows remote attackers to have an unspecified impact via a crafted extension.

Google Chrome before 15.0.874.102 does not properly handle history data, which allows user-assisted remote attackers to spoof the URL bar via unspecified vectors.

WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp in Blink, as used in Google Chrome before 52.0.2743.82, does not consider referrer-policy information inside an HTML document during a preload request, which allows remote attackers to bypass the Content Security Policy (CSP) protection mechanism via a crafted web site, as demonstrated by a "Content-Security-Policy: referrer origin-when-cross-origin" header that overrides a "<META name='referrer' content='no-referrer'>" element.

Google Chrome before 14.0.835.163 allows user-assisted remote attackers to spoof the URL bar via vectors related to "unusual user interaction."

Mozilla Firefox before 48.0 on Android allows remote attackers to spoof the address bar via left-to-right characters in conjunction with a right-to-left character set.

Multiple issues in Blink in Google Chrome prior to 54.0.2840.59 for Windows, Mac, and Linux allow a remote attacker to spoof various parts of browser UI via crafted HTML pages.

Incorrect security UI in Omnibox 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 security UI in Omnibox 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.

If manipulated hyperlinked text with "chrome:" URL contained in it is dragged and dropped on the "home" icon, the home page can be reset to include a normally-unlinkable chrome page as one of the home page tabs. This vulnerability affects Firefox < 60.

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.

Insufficient data validation in DevTools in Google Chrome prior to 64.0.3282.119 allowed a remote attacker to potentially leak user cross-origin data via a crafted Chrome Extension.

Cross-application scripting vulnerability in the Browser URL loading functionality in Android 2.3.4 and 3.1 allows local applications to bypass the sandbox and execute arbitrary Javascript in arbitrary domains by (1) causing the MAX_TAB number of tabs to be opened, then loading a URI to the targeted domain into the current tab, or (2) making two startActivity function calls beginning with the targeted domain's URI followed by the malicious Javascript while the UI focus is still associated with the targeted domain.