Astra Linux – Vulnerability in Firefox and Thunderbird

Through a series of window.print calls and popups, an attacker can make a window become fullscreen without the user seeing the notification prompt. This can lead to potential confusion among users or be used in spoofing attacks. This vulnerability affects Firefox ESR version 102.5, Thunderbird...

Astra Linux – Vulnerability in Firefox

A website could have obscured the fullscreen notification by using an option element, introducing a delay through a costly computational process. This could have caused confusion among users and potentially led to spoofing attacks. This vulnerability affects Firefox versions earlier than 115...

Astra Linux – Vulnerability in Firefox and Thunderbird

By misusing a race in our notification code, an attacker could have forcibly hide notifications 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...

Astra Linux – Vulnerability in Firefox and Thunderbird

A website could have obscured the fullscreen notification by using a dropdown select input element. This could have caused user confusion and potentially led to spoofing attacks. This vulnerability affects Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8...

Astra Linux – Vulnerability in Firefox and Thunderbird

When resizing a popup while requesting fullscreen access, the popup becomes unable to exit the fullscreen mode. This vulnerability affects Firefox ESR 91.5, Firefox 96, and Thunderbird 91.5...

Astra Linux – Vulnerability in Firefox and Thunderbird

A website could have obscured the fullscreen notification by using a URL that was processed by an external program, such as a mailto URL. This could have caused confusion among users and potentially led to spoofing attacks. This vulnerability affects Firefox 115, Firefox ESR 102.13, and Thunderbi...

Astra Linux – Vulnerability in Firefox

A malicious website can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been exploited in a spoofing attack. This vulnerability affects Firefox versions earlier than 119...

Astra Linux – Vulnerability in Thunderbird, Firefox

By confusing the browser, the fullscreen notification could have been delayed or suppressed, leading to potential user confusion or spoofing attacks. This vulnerability affects Firefox versions earlier than 108...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in Fullscreen in Google Chrome prior to 116.0.5845.96 allowed a remote attacker to obfuscate security UI via a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Firefox, Thunderbird

The black fade animation when exiting fullscreen is roughly the same duration as the delay in permission prompts during the anti-clickjacking process. It was possible to take advantage of this fact to surprise users by tempting them to click on the permission grant button before it appeared. This...

Astra Linux – Vulnerability in Firefox and Thunderbird

When exiting fullscreen mode, an iframe could mislead the browser regarding the current state of fullscreen, potentially causing confusion for users or leading to spoofing attacks. This vulnerability affects Thunderbird 91.10, Firefox 101, and Firefox ESR 91.10...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the Fullscreen API in Google Chrome on Android prior to 104.0.5112.79 allowed a remote attacker to spoof the contents of the Omnibox URL bar via a crafted HTML page...

Astra Linux – Vulnerability in Firefox and Thunderbird

A malicious website could have used a combination of the fullscreen mode and the requestPointerLock function to cause the user’s mouse to be repositioned unexpectedly. This could lead to confusion among users and, inadvertently, the granting of permissions that the user did not intend to grant...

Astra Linux – Vulnerability in Firefox and Thunderbird

Through a series of maneuvers, Firefox could have entered fullscreen mode without notifying or warning the user. This could lead to spoofing attacks on the browser interface, including phishing attempts. This vulnerability affects Firefox versions earlier than 94, Thunderbird versions earlier tha...

Astra Linux – Vulnerability in Firefox and Thunderbird

Through a series of popups that reuse windowName, an attacker can cause a window to go fullscreen without the user seeing the notification prompt. This results in potential user confusion or spoofing attacks. This vulnerability affects Firefox ESR 102.5, Thunderbird 102.5, and Firefox 107...

Chromium: CVE-2026-84330 UI misrepresentation in FullScreen

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

CVE-2026-87502

A flaw was found in Google Chrome. This confused deputy vulnerability in the Fullscreen feature allows a remote attacker, who has compromised the renderer process and leveraged social engineering, to spoof user interface UI elements. This can be achieved by presenting a specially crafted HTML pag...

CVE-2026-87653

A flaw was found in chromium-browser. A remote attacker could exploit this vulnerability by crafting a malicious HTML page. This could lead to user interface UI misrepresentation in FullScreen mode, allowing the attacker to spoof UI elements...

CVE-2026-87653

UI misrepresentation in FullScreen in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements via a crafted HTML page. Chromium security severity: Low...

DEBIAN-CVE-2026-87653

UI misrepresentation in FullScreen in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to spoof UI elements via a crafted HTML page. Chromium security severity: Low...