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CVE-2021-47857

🗓️ 21 Jan 2026 17:27:39Reported by MendType 
mend
 mend
🔗 www.mend.io👁 6 Views

Persistent XSS in Moodle calendar event subtitle field allows execution of arbitrary code.

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
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
ptsecurity
Positive Technologies
PT-2026-3809
25 Mar 202100:00
–ptsecurity
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08 Oct 2026 00:05Current
6.5Medium risk
Vulners AI Score6.5
CVSS 45.1
CVSS 3.16.1 - 7.2
EPSS0.00377
SSVC
6