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 3.0.0 and up to and including 3.9.19 are vulnerable.

Remediation

Update to Joomla! Core version 3.9.20 or latest

References

https://developer.joomla.org/security-centre/821-20200704-core-variable-tampering-via-user-table-class.html

Related Vulnerabilities

WordPress Plugin ChikunCount Arbitrary File Upload (1.3)

IBM RTC Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2019-4250)

ownCloud Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Vulnerability (CVE-2021-44537)

Joomla Improper Input Validation Vulnerability (CVE-2013-5576)

Piwigo Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2017-17774)

Severity

High

Classification

CVE-2020-15697 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