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CVE-2015-7214

MediumPublished

Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.5 allow remote attackers to bypass the Same Origin Policy via data: and view-source: URIs.

Published: Dec 16, 2015
Updated: Aug 6, 2024
Assigning CNA: mozilla
Evidence observed: Aug 8, 2026

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS probability estimate

6.1%

Low · next 30 days

Percentile: 93.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.5 allow remote attackers to bypass the Same Origin Policy via data: and view-source: URIs.

Sources

CVE-2015-7214PoC
Proof-of-concept exploit for CVE-2015-7214 demonstrating Same-Origin Policy bypass in Firefox 42.0 via data and view-source URIs, with local and web-based test cases.

Responsible use

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