{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45150", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-08T20:44:38.964Z", "datePublished": "2026-07-15T15:35:17.010Z", "dateUpdated": "2026-07-15T17:44:16.341Z"}, "containers": {"cna": {"title": "Zen Browser - Missing Fullscreen Security Notification Allows Origin Spoofing", "problemTypes": [{"descriptions": [{"cweId": "CWE-451", "lang": "en", "description": "CWE-451: User Interface (UI) Misrepresentation of Critical Information", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c"}], "affected": [{"vendor": "zen-browser", "product": "desktop", "versions": [{"version": "< 1.19.13b", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-15T15:35:17.010Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-vjfv-85qf-v25c", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-15T17:44:09.603889Z", "id": "CVE-2026-45150", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-15T17:44:16.341Z"}}]}}

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