An issue was discovered in Joomla! before 3.9.3. Inadequate checks at the Global Configuration helpurl settings allowed stored XSS.
https://developer.joomla.org/security-centre/768-20190204-core-stored-xss-issue-in-the-global-configuration-help-url-2
Source: Mitre, NVD
Published: 2019-02-12
Updated: 2019-02-13
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N