CVE-2018-18495 — Vulnetix

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CVE-2018-18495 PUBLISHED

WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

EPSS 0.33% · 55.6th percentile

Risk Scores

EPSS Score

0.33%

55.6th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:18.04:LTS	firefox	63.0.3+build1-0ubuntu0.18.04.1, 63.0+build2-0ubuntu0.18.04.2, 62.0.3+build1-0ubuntu0.18.04.1
Ubuntu:14.04:LTS	firefox	36.0+build2-0ubuntu0.14.04.4, 36.0.1+build2-0ubuntu0.14.04.1, 36.0.4+build1-0ubuntu0.14.04.1
Ubuntu:16.04:LTS	firefox	50.0.2+build1-0ubuntu0.16.04.1, 50.1.0+build2-0ubuntu0.16.04.1, 51.0.1+build2-0ubuntu0.16.04.1

Timeline

Dec 11, 2018 CVE Published
Apr 14, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Dec 25, 2021 EPSS Score
Feb 25, 2022 EPSS Score
Apr 28, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Aug 31, 2022 EPSS Score
Jan 2, 2023 EPSS Score
Mar 5, 2023 EPSS Score
Mar 7, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2018-18495 third-party-advisory
https://www.mozilla.org/en-US/security/advisories/mfsa2018-29/#CVE-2018-18495 third-party-advisory
https://ubuntu.com/security/notices/USN-3844-1 vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2018-18495 third-party-advisory

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