CVE-2018-5134

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox < 59.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-200

Affected software

No affected versions have been published.

Timeline

Published
Jun 11, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-5134: High severity, CVSS 7.5 | Vulnix