vulnerability
Arch Linux: Cross-site scripting (CVE-2020-26956)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Dec 9, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Dec 9, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A security issue has been found in Firefox before 83.0 where, in some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS.
Solution
arch-linux-upgrade-latest
References
- CVE-2020-26956
- https://attackerkb.com/topics/CVE-2020-26956
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1666300
- URL-https://security.archlinux.org/ASA-202011-12
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-50/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-51/
- URL-https://www.mozilla.org/security/advisories/mfsa2020-52/
- CWE-79
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