CVE-2019-17020

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-611

Affected software

No affected versions have been published.

Timeline

Published: Jan 8, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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