CVE-2018-12398

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CVSS 3.0

6.5 medium

EPSS

2%p75

Published

Feb 28, 2019 (Feb 28, 2019)

Modified

Jun 17, 2026

Description

By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox < 63.

Vendors: mozilla canonical
Products: firefox, ubuntu linux
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (1.6%)

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