[20200401] – Core – Incorrect access control in com_users access level editing function

  • Project: Joomla!
  • SubProject: CMS
  • Impact: Low
  • Severity: Low
  • Versions: 3.8.8 - 3.9.16
  • Exploit type: Incorrect Access Control
  • Reported Date: 2020-March-13
  • Fixed Date: 2020-April-21
  • CVE Number: CVE-2020-11891


Incorrect ACL checks in the access level section of com_users allow the unauthorized editing of usergroups.

Affected Installs

Joomla! CMS versions 3.8.8 - 3.9.16


Upgrade to version 3.9.17


The JSST at the Joomla! Security Centre.

Reported By: Hoang Kien from VSEC

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