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.
Metrics
Affected Vendors & Products
References
History
Fri, 23 Jan 2026 16:45:00 +0000
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| First Time appeared |
Moodle
Moodle moodle |
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| Vendors & Products |
Moodle
Moodle moodle |
Thu, 22 Jan 2026 23:00:00 +0000
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| Metrics |
ssvc
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Wed, 21 Jan 2026 17:45:00 +0000
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| Description | 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. | |
| Title | Moodle 3.10.3 - 'label' Persistent Cross Site Scripting | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-01-21T17:27:39.382Z
Updated: 2026-01-22T22:09:37.406Z
Reserved: 2026-01-14T17:11:19.904Z
Link: CVE-2021-47857
Updated: 2026-01-22T22:09:32.126Z
Status : Received
Published: 2026-01-21T18:16:16.567
Modified: 2026-01-21T18:16:16.567
Link: CVE-2021-47857
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