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 3.9.27 are vulnerable.

Remediation

Update to Joomla! Core version 3.9.28 or latest

References

https://developer.joomla.org/security-centre/859-20210704-core-privilege-escalation-through-com-installer.html

Related Vulnerabilities

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Dot CMS Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2016-3972)

WordPress Plugin Quiz and Survey Master (QSM)-Easy Quiz and Survey Maker SQL Injection (7.1.13)

WordPress Plugin Author Chat Unspecified Vulnerability (1.9.0)

WordPress Plugin CopySafe PDF Protection Unspecified Vulnerability (1.10)

Severity

High

Classification

CVE-2021-26038 CWE-284 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