vulnerability
Arch Linux: Access restriction bypass (CVE-2019-17020)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Jan 8, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jan 8, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A Content Security Policy bypass has been found in Firefox before 72.0, where the CSP is not applied to XSL stylesheets applied to XML documents. 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.
Solution
arch-linux-upgrade-latest
References
- CVE-2019-17020
- https://attackerkb.com/topics/CVE-2019-17020
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1597645
- URL-https://security.archlinux.org/ASA-202001-1
- URL-https://usn.ubuntu.com/4234-1/
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2020-01/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-01/
- CWE-611
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