Websites redirecting to a non-HTTP scheme URL could allow a website address to be spoofed for a malicious page This vulnerability affects Firefox for iOS < 136.

Inappropriate implementation in Permissions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in WebRTC in Google Chrome prior to 87.0.4280.66 allowed a local attacker to bypass policy restrictions via a crafted HTML page.

Inappropriate implementation in Downloads in Google Chrome prior to 145.0.7632.45 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in Extensions in Google Chrome prior to 132.0.6834.83 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Low)

Insufficient policy enforcement in cookies in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass cookie policy via a crafted HTML page.

Incorrect security UI in Navigation in Google Chrome on Android prior to 92.0.4515.131 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.

Inappropriate implementation in Picture In Picture in Google Chrome prior to 139.0.7258.66 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Insufficient policy enforcement in content security policy in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page.

A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 141.

Inappropriate implementation in Picture In Picture in Google Chrome prior to 139.0.7258.66 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in PictureInPicture in Google Chrome prior to 130.0.6723.58 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

The incorrect domain may have been displayed in the address bar during an interrupted navigation attempt. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Insufficient validation of untrusted input in Sharing in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to bypass navigation restrictions via a crafted click-to-call link.

Inappropriate implementation in WebApp Installs in Google Chrome on Android prior to 111.0.5563.64 allowed an attacker who convinced a user to install a malicious WebApp to spoof the contents of the PWA installer via a crafted HTML page. (Chromium security severity: Medium)

Inappropriate implementation in Permission prompts in Google Chrome prior to 111.0.5563.64 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)

Inappropriate implementation in Extensions in Google Chrome on Windows prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Insufficient data validation in File System API in Google Chrome prior to 106.0.5249.62 allowed a remote attacker to bypass File System restrictions via a crafted HTML page and malicious file. (Chromium security severity: Low)

Inappropriate implementation in Custom Tabs in Google Chrome on Android prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in Autofill in Google Chrome prior to 129.0.6668.58 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in FedCM in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Inappropriate implementation in Views in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Insufficient validation of untrusted input in Safe Browsing in Google Chrome prior to 127.0.6533.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to bypass discretionary access control via a malicious file. (Chromium security severity: Low)

Inappropriate implementation in Filesystems in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in Custom Tabs in Google Chrome on Android prior to 106.0.5249.119 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: High)

The frame iterator could get stuck in a loop when encountering certain wasm frames leading to incorrect stack traces. This vulnerability affects Firefox < 128 and Thunderbird < 128.

Insufficient policy enforcement in Popup Blocker in Google Chrome prior to 108.0.5359.71 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)

An attacker could cause a select dropdown to be shown over another tab; this could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

If there was a PAC URL set and the server that hosts the PAC was not reachable, OCSP requests would have been blocked, resulting in incorrect error pages being shown. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only possible if the website kept recording with the microphone until re-enabling the camera. This vulnerability affects Firefox < 89.

Address bar search suggestions in private browsing mode were re-using session data from normal mode. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.

When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.

When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.

Different techniques existed to obscure the fullscreen notification in Firefox for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 126.

Insufficient data validation in File System API in Google Chrome prior to 106.0.5249.62 allowed a remote attacker to bypass File System restrictions via a crafted HTML page. (Chromium security severity: Low)

If a MIME encoded email contains an OpenPGP inline signed or encrypted message part, but also contains an additional unprotected part, Thunderbird did not indicate that only parts of the message are protected. This vulnerability affects Thunderbird < 78.10.2.

The exception page for the HTTPS-Only feature, displayed when a website is opened via HTTP, lacked an anti-clickjacking delay, potentially allowing an attacker to trick a user into granting an exception and loading a webpage over HTTP. This vulnerability affects Firefox < 140 and Thunderbird < 140.

Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 106.0.5249.62 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in FileSystem in Google Chrome prior to 131.0.6778.69 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in Autofill in Google Chrome prior to 131.0.6778.69 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Insufficient validation of untrusted input in Safe Browsing in Google Chrome prior to 106.0.5249.62 allowed a remote attacker to bypass security feature via a crafted HTML page. (Chromium security severity: Low)

Inappropriate implementation in Autofill in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to bypass Autofill restrictions via a crafted HTML page. (Chromium security severity: Low)

A compromised content process could have updated the document URI. This could have allowed an attacker to set an arbitrary URI in the address bar or history. This vulnerability affects Firefox < 122.

If array shift operations are not used, the Garbage Collector may have become confused about valid objects. This vulnerability affects Firefox < 101.

The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135.

It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an incorrect timestamp used to prevent input after page load. This vulnerability affects Firefox < 122, Firefox ESR < 115.7, and Thunderbird < 115.7.

Inappropriate implementation in Pointer Lock in Google Chrome on Mac prior to 105.0.5195.52 allowed a remote attacker to restrict user navigation via a crafted HTML page.

In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the push manager subscription defined one. This could allow empty messages to be sent from unauthorized parties. *This bug only affects Firefox on Android.* This vulnerability affects Firefox < 121.

Inappropriate implementation in FedCM in Google Chrome prior to 127.0.6533.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.