Code Injection in Moodle - CVE-2023-5539
Published: October 18, 2023
Vulnerability identifier: #VU82188
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-5539
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the Lesson activity. A remote user can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Moodle
How to mitigate CVE-2023-5539
Install updates from vendor's website.
Moodle - addressed in versions 3.9.24, 3.11.17, 4.0.11, 4.1.6, 4.2.3