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CVE-2021-47857

🗓️ 21 Jan 2026 19:50:44Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 15 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
attackerkb
CVE-2021-47857
21 Jan 202617:27
–attackerkb
bdu_fstec
BDU FSTEC
Moodle Subtitles XSS
30 Jan 202600:00
–bdu_fstec
cnnvd
CNNVD
Moodle cross-site scripting vulnerabilities
21 Jan 202600:00
–cnnvd
cve
CVE
CVE-2021-47857
21 Jan 202617:27
–cve
cvelist
Cvelist
CVE-2021-47857 Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
21 Jan 202617:27
–cvelist
euvd
EUVD
EUVD-2026-3616
21 Jan 202617:27
–euvd
mend
Mend
CVE-2021-47857
21 Jan 202617:27
–mend
nvd
NVD
CVE-2021-47857
21 Jan 202618:16
–nvd
osv_bit
osv_bit
BIT-MOODLE-2021-47857 Moodle 3.10.3 - 'label' Persistent Cross Site Scripting
6 Mar 202608:46
–osv_bit
osv_cve
osv_cve
CVE-2021-47857
21 Jan 202618:16
–osv_cve
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21 Jan 2026 19:50Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.16.1 - 7.2
CVSS 45.1
EPSS0.00377
SSVC
15