CVE-2018-5134

HIGH · CVSS 7.5 EPSS 1.68%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-06-11 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE

CVE-2018-5134

Severity

HIGH

CVSS

7.5

EPSS

1.68%

Firefox

Original Filing — NVD 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.