EUVD-2026-44703

Zen is a firefox-based browser. Prior to 1.19.13b, Zen Browser did not provide a persistent, clearly visible security notification when a webpage entered fullscreen mode, allowing an attacker-controlled page to hide the real browser UI and origin information, imitate a trusted website UI, and...

CVE-2026-45150

Zen Browser is a Firefox-based browser. The CVE-2026-45150 issue affects Zen prior to version 1.19.13b, where there was no persistent, clearly visible security notification when a page entered fullscreen. This could allow an attacker-controlled page to hide the real browser UI and origin informat...

CVE-2026-45150 Zen Browser - Missing Fullscreen Security Notification Allows Origin Spoofing

Zen is a firefox-based browser. Prior to 1.19.13b, Zen Browser did not provide a persistent, clearly visible security notification when a webpage entered fullscreen mode, allowing an attacker-controlled page to hide the real browser UI and origin information, imitate a trusted website UI, and...