vulnerability

Alpine Linux: CVE-2019-17020: Improper Restriction of XML External Entity Reference

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jan 8, 2020
Added
Aug 22, 2024
Modified
Dec 5, 2025

Description

If an XML file is served with a Content Security Policy and the XML file includes an XSL stylesheet, the Content Security Policy will not be applied to the contents of the XSL stylesheet. If the XSL sheet e.g. includes JavaScript, it would bypass any of the restrictions of the Content Security Policy applied to the XML document. This vulnerability affects Firefox < 72.

Solutions

alpine-linux-upgrade-firefoxalpine-linux-upgrade-librewolf
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