Input validation error in Moodle - CVE-2021-36402
Published: July 19, 2021
Vulnerability identifier: #VU54986
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-36402
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: moodle.org
Affected software:
Moodle
Moodle
Detailed vulnerability description
The vulnerability allows a remote attacker to perform phishing attacks.
The vulnerability exists due to insufficient validation of user-supplied input when processing user names in account confirmation emails. A remote attacker can modify email contents via a specially crafted username and perform phishing attack.
How to mitigate CVE-2021-36402
Install updates from vendor's website.