WebExtension Content Scripts Bypass Permissions Vulnerability

CVE-2018-18495 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:N/A:N

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.

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