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

WordPress Plugin Polylang Cross-Site Request Forgery (2.5)

Python Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') Vulnerability (CVE-2010-3493)

PHP Numeric Errors Vulnerability (CVE-2015-4021)

WebLogic Incorrect Authorization Vulnerability (CVE-2018-1258)

MySQL CVE-2022-21253 Vulnerability (CVE-2022-21253)

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