CVE-2018-18495

firefox: WebExtension content scripts can be loaded in about: pages

Published Feb 28, 2019 CVSS 3.0 · 6.5 Medium EPSS 1.9% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2018-10220 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.
Ubuntu USN Ubuntu USN USN-3844-1 Firefox vulnerabilities
History

No history.

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Aug 5, 2024, 11:08 AM
Reserved
Oct 19, 2018, 12:00 AM
Status
Modified
Published
Feb 28, 2019, 6:29 PM
Modified
Jun 17, 2026, 1:47 AM
Severity
Moderate
Public date
Dec 11, 2018, 12:00 AM