Cross-site request forgery in Moodle - CVE-2021-43559
Published: November 16, 2021
Vulnerability identifier: #VU58188
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-43559
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin in the "delete related badge" functionality. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
Affected software
Moodle
How to mitigate CVE-2021-43559
Install updates from vendor's website.
Moodle - addressed in versions 3.9.11, 3.10.8, 3.11.4