Description

Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently bypass ACL's. Joomla! Core versions 3.x.x ranging from 3.7.0 and up to and including 3.8.11 are vulnerable.

Remediation

Update to Joomla! Core version 3.8.12 or latest

References

https://developer.joomla.org/security-centre/745-20180803-core-acl-violation-in-custom-fields.html

Related Vulnerabilities

Piwigo Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-22150)

WordPress Plugin Package Quantity Discount Security Bypass (1.1.2)

WordPress Plugin Discount Rules for WooCommerce Multiple Vulnerabilities (2.0.2)

Joomla Permissions, Privileges, and Access Controls Vulnerability (CVE-2016-9837)

Oracle JRE Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2025-53066)

Severity

High

Classification

CVE-2018-15881 CWE-264 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update Authentication Bypass