Description

Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to bypass intended access restrictions and perform otherwise restricted actions. Joomla! Core versions ranging from 2.5.0 and up to and including 3.9.16 are vulnerable.

Remediation

Update to Joomla! Core version 3.9.17 or latest

References

https://github.com/HoangKien1020/CVE-2020-11890

https://developer.joomla.org/security-centre/810-20200402-core-missing-checks-for-the-root-usergroup-in-usergroup-table.html

Related Vulnerabilities

WordPress Plugin WooCommerce Security Bypass (6.3.0)

SugarCRM Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-17310)

MySQL Improper Link Resolution Before File Access ('Link Following') Vulnerability (CVE-2008-7247)

MySQL CVE-2017-3244 Vulnerability (CVE-2017-3244)

Perl Improper Link Resolution Before File Access ('Link Following') Vulnerability (CVE-1999-1386)

Severity

High

Classification

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update Authentication Bypass CWE-264 CVE-2020-11890