vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-23974): Firefox vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Feb 26, 2021 | Feb 27, 2021 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Feb 26, 2021
Added
Feb 27, 2021
Modified
Mar 27, 2026
Description
The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.
Solution
ubuntu-upgrade-firefox
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