Vulnerability 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.
Related Weaknesses (CWE)
References
- https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c
- https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c
FAQ
What is CVE-2026-45150?
CVE-2026-45150 is a documented vulnerability. 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-controll...
How severe is CVE-2026-45150?
CVSS scoring is not yet available for CVE-2026-45150. Check NVD for updates.
Is there a patch for CVE-2026-45150?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.