VULNERABILITY INTELLIGENCE
CVE-2026-45150
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-07-15
Last modified2026-10-24
Description
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 combine with long-domain URL eliding to spoof a trusted origin for phishing and credential theft. This issue is fixed in version 1.19.13b.
Weakness classification
- security-advisories@github.com: CWE-451