CVE-2017-7816

PoC —

CVSS 3.0

5.3 medium

EPSS

1%p68

Published

Jun 11, 2018 (Jun 11, 2018)

Modified

Jun 17, 2026

Description

WebExtensions could use popups and panels in the extension UI to load an "about:" privileged URL, violating security checks that disallow this behavior. This vulnerability affects Firefox < 56.

Vendors: mozilla
Products: firefox
Weakness: CWE-20
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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