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CVE-2021-43560

Status: ModifiedMedium (5.3)—

A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. Insufficient capability checks made it possible to fetch other users' calendar action events.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Fedoraproject — Extra Packages FOR Enterprise LinuxFedoraproject — FedoraMoodle — Moodle

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2021-43560",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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  "affected": [
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      "source": "patrick@puiterwijk.org",
      "affectedData": [
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          "vendor": "n/a",
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  "published": "2021-11-22T16:15:08.337",
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      "tags": [
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        "Third Party Advisory"
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      "description": [
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          "value": "CWE-863"
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-668"
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    },
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    }
  ],
  "lastModified": "2026-06-17T04:11:08.223",
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