Improper access control in Moodle - #VU148887
Published: September 10, 2026
Vulnerability identifier: #VU148887
CSH Severity: Medium
CVSS v4: 5.3 [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]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to insufficient validation of the audience classname in report builder. A remote user can cause arbitrary class instantiation.
Affected software
Moodle
Remediation
Install updates from vendor's website.
Moodle - addressed in versions 4.5.13, 5.0.9, 5.1.6, 5.2.2