In Joomla! before 3.9.19, the default settings of the global textfilter configuration do not block HTML inputs for Guest users.
https://developer.joomla.org/security-centre/814-20200602-core-inconsistent-default-textfilter-settings
Source: Mitre, NVD
Published: 2020-06-02
Updated: 2020-10-19
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: High