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CVE-2021-47857

🗓️ 21 Jan 2026 17:27:39Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 90 Views

Moodle 3.10.3 has a persistent cross site scripting flaw in the calendar event subtitle enabling code execution.

Related
Detection
Affected
Refs
Social
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
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
ptsecurity
Positive Technologies
PT-2026-3809
25 Mar 202100:00
–ptsecurity
Rows per page
NVD
Vulners
CNA
Node
moodlemoodleMatch3.10.3
[
  {
    "vendor": "Moodle",
    "product": "Moodle",
    "versions": [
      {
        "version": "3.10.3",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 04:18Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.16.1 - 7.2
CVSS 45.1
EPSS0.00377
SSVC
90