CVE-2021-47857 — Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
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 craf…
Published: 2026-01-21 · CVSS: 5.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7