PT-2026-60208 · Unknown · Zen Browser

CVE-2026-45150 · Published 2026-07-15 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Zen Browser versions prior to 1.19.13b

Description The browser fails to provide a persistent and clearly visible security notification when a webpage enters fullscreen mode. This allows an attacker-controlled page to hide the actual browser user interface and origin information, imitate a trusted website interface, and use long-domain URL eliding to spoof a trusted origin, which can lead to phishing and credential theft.

Recommendations Update Zen Browser to version 1.19.13b.

Exploit

Fix

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-451

Related Identifiers

CVE-2026-45150

GHSA-VJFV-85QF-V25C

Affected Products

Zen Browser

References · 4

• 🔥 https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45150.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-45150 · Security Note
• https://osv.dev/vulnerability/CVE-2026-45150 · Vendor Advisory