CVE-2018-5134 — Sensitive Information Exposure in Mozilla Firefox

CWE-200 — Sensitive Information Exposure8 documents5 sources
Severity
7.5HIGHNVD
OSV8.8
EPSS
1.2%
top 21.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedJun 11
Latest updateMay 14

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/firefox< firefox 59.0-1 (sid)
▶CVEListV5mozilla/firefoxunspecified — 59
▶NVDmozilla/firefox< 59.0
▶Ubuntumozilla/firefox< 59.0+build5-0ubuntu0.14.04.1+4

🔴Vulnerability Details

4
GHSA
GHSA-jfrv-4vgm-cqr5: WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that o↗2022-05-14
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OSV
firefox regression↗2018-04-06
▶
OSV
firefox vulnerabilities↗2018-03-14
▶
OSV
CVE-2018-5134: WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that o↗2018-03-14
▶

📋Vendor Advisories

3
Ubuntu
Firefox regression↗2018-04-06
▶
Ubuntu
Firefox vulnerabilities↗2018-03-14
▶
Debian
CVE-2018-5134: firefox - WebExtensions may use "view-source:" URLs to view local "file:" URL content, as ...↗2018
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