An issue was discovered in Joomla! before 3.9.2. Inadequate checks of the Global Configuration helpurl settings allowed stored XSS.
https://developer.joomla.org/security-centre/763-20190104-core-stored-xss-issue-in-the-global-configuration-help-url
http://www.securityfocus.com/bid/106638
Source: Mitre, NVD
Published: 2019-01-16
Updated: 2019-02-26
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium