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.
References
Link | Resource |
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https://bugzilla.mozilla.org/show_bug.cgi?id=1597645 | Permissions Required |
https://www.mozilla.org/security/advisories/mfsa2020-01/ | Vendor Advisory |
https://usn.ubuntu.com/4234-1/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2020-01-08 14:15
Updated : 2021-07-21 04:39
NVD link : CVE-2019-17020
Mitre link : CVE-2019-17020
JSON object : View
CWE
CWE-611
Improper Restriction of XML External Entity Reference
Products Affected
mozilla
- firefox
canonical
- ubuntu_linux