• Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.2.0 through 3.9.3
  • Exploit type: XSS
  • Reported Date: 2019-March-04
  • Fixed Date: 2019-March-12
  • CVE Number: CVE-2019-9712


The JSON handler in com_config lacks input validation, leading to XSS vulnerability.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.3


Upgrade to version 3.9.4


The JSST at the Joomla! Security Centre.

Reported By: Mario Korth, Hackmanit