When viewing an email message A, which contains an attached message B, where B is encrypted or digitally signed or both, Thunderbird may show an incorrect encryption or signature status. After opening and viewing the attached message B, when returning to the display of message A, the message A might be shown with the security status of message B. This vulnerability affects Thunderbird < 91.9.

Under certain circumstances, a JavaScript alert (or prompt) could have been shown while another website was displayed underneath it. This could have been abused to trick the user. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 97.

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.1. Visiting a malicious website may lead to user interface spoofing.

IBM Security Verify Privilege On-Premises 11.5 could allow an attacker to spoof a trusted entity due to improperly validating certificates. IBM X-Force ID: 221957.

A logic issue in the handling of concurrent media was addressed with improved state handling. This issue is fixed in macOS Monterey 12.4, iOS 15.5 and iPadOS 15.5. Video self-preview in a webRTC call may be interrupted if the user answers a phone call.

When scanning QR codes, Firefox for Android would have allowed navigation to some URLs that do not point to web content.<br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 96.

When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Insufficient validation of untrusted input in SiteIsolation in Google Chrome prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to bypass Site Isolation via a crafted HTML page. (Chromium security severity: High)

Out of bounds write in Dawn in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

When parsing internationalized domain names, high bits of the characters in the URLs were sometimes stripped, resulting in inconsistencies that could lead to user confusion or attacks such as phishing. This vulnerability affects Firefox < 94.

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Policy bypass in Blink in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Incorrect security UI in Blink in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Insufficient validation of untrusted input in Downloads in Google Chrome on Windows prior to 147.0.7727.55 allowed a remote attacker to bypass download restrictions via a crafted HTML page. (Chromium security severity: Medium)

Inappropriate implementation in PDF in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

Incorrect security UI in Downloads in Google Chrome prior to 147.0.7727.55 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)

Incorrect security UI in Omnibox in Google Chrome on iOS prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

Policy bypass in Downloads in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to bypass of multi-download protections via a crafted HTML page. (Chromium security severity: Low)

Incorrect security UI in Omnibox in Google Chrome on Android prior to 147.0.7727.55 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Low)

Policy bypass in ServiceWorkers in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Low)

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.

By navigating a tab using the history API, an attacker could cause the address bar to display the incorrect domain (with the https:// scheme, a blocked port number such as '1', and without a lock icon) while controlling the page contents. This vulnerability affects Firefox < 70.

Insufficient policy enforcement in DevTools in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

Incorrect security UI in PictureInPicture in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

A website could have obscured the fullscreen notification by using a combination of <code>window.open</code>, fullscreen requests, <code>window.name</code> assignments, and <code>setInterval</code> calls. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

Incorrect security UI in LookalikeChecks in Google Chrome on Android prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Insufficient policy enforcement in Extensions in Google Chrome prior to 146.0.7680.71 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)

Incorrect security UI in PictureInPicture in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Incorrect security UI in WebAppInstalls in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)

Android applications with unpatched vulnerabilities can be launched from a browser using Intents, exposing users to these vulnerabilities. Firefox will now confirm with users that they want to launch an external application before doing so. <br>*This bug only affects Firefox for Android. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 111.

The issue was addressed with improved checks. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, watchOS 11.4. Visiting a malicious website may lead to address bar spoofing.

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

Insufficient policy enforcement in DevTools in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)

The fullscreen notification could have been hidden on Firefox for Android by using download popups, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 111.

The issue was addressed by adding additional logic. This issue is fixed in Safari 18.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3. Visiting a malicious website may lead to address bar spoofing.

The issue was addressed with improved UI. This issue is fixed in Safari 18.3, Safari 18.4, iOS 18.3 and iPadOS 18.3, iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.3, macOS Sequoia 15.4, visionOS 2.3, visionOS 2.4, watchOS 11.4. Visiting a malicious website may lead to user interface spoofing.

Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.

A logic issue was addressed with improved state management. This issue is fixed in iOS 13. Visiting a malicious website may lead to address bar spoofing.

Malicious scripts could display attacker-controlled web content under spoofed domains in Focus for iOS by stalling a _self navigation to an invalid port and triggering an iframe redirect, causing the UI to display a trusted domain without user interaction. This vulnerability was fixed in Focus for iOS 148.2.

By displaying a prompt with a long description, the fullscreen notification could have been hidden, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 111.

Insufficient policy enforcement in browser UI in Google Chrome prior to 147.0.7727.55 allowed a remote attacker who had compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (Chromium security severity: Medium)

A logic issue was addressed with improved restrictions. This issue is fixed in Safari 13.1. A malicious iframe may use another website’s download settings.

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 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.

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.

Insufficient policy enforcement in Navigation in Google Chrome on iOS prior to 111.0.5563.64 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)

Firefox did not reset the address bar after the beforeunload dialog was shown if the user chose to remain on the page. This could have resulted in an incorrect URL being shown when used in conjunction with other unexpected browser behaviors. This vulnerability affects Firefox < 80.