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CVE-2021-43559

Status: ModifiedHigh (8.8)—

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. The "delete related badge" functionality did not include the necessary token check to prevent a CSRF risk.

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-2021-43559",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
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  "published": "2021-11-22T16:15:08.287",
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    },
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    }
  ],
  "lastModified": "2026-06-17T04:11:08.123",
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