#VU28530 Insecure default configuration in Joomla! - CVE-2020-13763
Published: June 2, 2020 / Updated: October 19, 2020
Vulnerability identifier: #VU28530
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-13763
CWE-ID: CWE-16
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Joomla!
Joomla!
Software vendor:
Joomla!
Joomla!
Description
The vulnerability allows a remote attacker to perform XSS attack.
The vulnerability exists due to the default settings of the global "textfilter" configuration doesn't block HTML inputs for 'Guest' users. A remote user can inject and execute arbitrary HTML code in victim's browser in context of the website.
Remediation
Install updates from vendor's website.