CVE-2018-5135 — Missing Authorization in Mozilla Firefox

CWE-862 — Missing Authorization8 documents5 sources
Severity
7.5HIGHNVD
OSV8.8
EPSS
1.0%
top 23.42%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedJun 11
Latest updateMay 13

Description

WebExtensions can bypass normal restrictions in some circumstances and use "browser.tabs.executeScript" to inject scripts into contexts where this should not be allowed, such as pages from other WebExtensions or unprivileged "about:" pages. This vulnerability affects Firefox < 59.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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-q9w5-hr49-h5h8: WebExtensions can bypass normal restrictions in some circumstances and use "browser↗2022-05-13
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OSV
firefox regression↗2018-04-06
▶
OSV
firefox vulnerabilities↗2018-03-14
▶
OSV
CVE-2018-5135: WebExtensions can bypass normal restrictions in some circumstances and use "browser↗2018-03-14
▶

📋Vendor Advisories

3
Ubuntu
Firefox regression↗2018-04-06
▶
Ubuntu
Firefox vulnerabilities↗2018-03-14
▶
Debian
CVE-2018-5135: firefox - WebExtensions can bypass normal restrictions in some circumstances and use "brow...↗2018
▶