Vulnerability Details CVE-2021-47857
Moodle 3.10.3 contains a persistent cross-site scripting vulnerability in the calendar event subtitle field that allows attackers to inject malicious scripts. Attackers can craft a calendar event with malicious JavaScript in the subtitle track label to execute arbitrary code when users view the event.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 15.5%
CVSS Severity
CVSS v3 Score 7.2
References