CVE Explorer

CVE-2026-45150

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3a7932bf0096b33d6cd803fb62d997d7db74ab4f2f3d7b115669b428beb1ab96

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"desktop","vendor":"zen-browser","versions":[{"status":"affected","version":"< 1.19.13b"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:70a9ee19533389cfdbfd758a5f6941170a590c15b2072137d86e0995e6f20858 · sha256:8472b0293b2178ba… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"ACTIVE","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","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:70a9ee19533389cfdbfd758a5f6941170a590c15b2072137d86e0995e6f20858 · sha256:8472b0293b2178ba… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-451","description":"CWE-451: User Interface (UI) Misrepresentation of Critical Information","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:70a9ee19533389cfdbfd758a5f6941170a590c15b2072137d86e0995e6f20858 · sha256:8472b0293b2178ba… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"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"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:70a9ee19533389cfdbfd758a5f6941170a590c15b2072137d86e0995e6f20858 · sha256:8472b0293b2178ba… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/zen-browser/desktop/security/advisories/GHSA-vjfv-85qf-v25c"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:70a9ee19533389cfdbfd758a5f6941170a590c15b2072137d86e0995e6f20858 · sha256:8472b0293b2178ba… · /containers/adp/0/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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