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CVE-2021-47857

🗓️ 21 Jan 2026 19:50:44Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 2 Views

Remote attacker with calendar event creation privileges can exploit a persistent cross site scripting flaw in Moodle's event subtitle.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2021-47857
21 Jan 202617:27
attackerkb
CNNVD
Moodle cross-site scripting vulnerabilities
21 Jan 202600:00
cnnvd
CVE
CVE-2021-47857
21 Jan 202617:27
cve
Cvelist
CVE-2021-47857 Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
21 Jan 202617:27
cvelist
EUVD
EUVD-2026-3616
21 Jan 202617:27
euvd
NVD
CVE-2021-47857
21 Jan 202618:16
nvd
OSV
BIT-MOODLE-2021-47857 Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
6 Mar 202608:46
osv
Positive Technologies
PT-2026-3809
25 Mar 202100:00
ptsecurity
Redos
ROS-20260209-73-0038
9 Feb 202600:00
redos
Vulnrichment
CVE-2021-47857 Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
21 Jan 202617:27
vulnrichment
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21 Jan 2026 19:50Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.16.1 - 7.2
CVSS 45.1
EPSS0.0005
SSVC
2