PT-2020-12924 · Open Source Matters · Joomla!

Hoang Kien · Published 2020-04-21 · Updated 2025-04-03 · CVE-2020-11891

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Joomla! versions prior to 3.9.17

Description An issue was discovered that allows unauthorized editing of usergroups due to incorrect ACL checks in the access level section of com users.

Recommendations For versions prior to 3.9.17, update to version 3.9.17 or later to resolve the issue.

Fix

Related Identifiers

BIT-JOOMLA-2020-11891

CVE-2020-11891

Affected Products

Joomla!

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-11891 · Security Note
• https://developer.joomla.org/security-centre/809-20200401-core-incorrect-access-control-in-com-users-access-level-editing-function.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-11891 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-joomla-2020-11891 · Vendor Advisory
• https://t.me/cvenotify/2973 · Telegram Post