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 3.x.x ranging from 3.8.8 and up to and including 3.9.16 are vulnerable.

Remediation

Update to Joomla! Core version 3.9.17 or latest

References

https://developer.joomla.org/security-centre/809-20200401-core-incorrect-access-control-in-com-users-access-level-editing-function.html

Related Vulnerabilities

WordPress Plugin fitness calculators Cross-Site Request Forgery (1.9.5)

WordPress Plugin All-In-One Security (AIOS)-Security and Firewall Cross-Site Scripting (4.4.5)

WordPress CVE-2011-4899 Vulnerability (CVE-2011-4899)

IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2018-1826)

Drupal Core 8.9.x Directory Traversal (8.9.0 - 8.9.16)

Severity

High

Classification

CVE-2020-11891 CWE-264 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