CVE-2026-123655

{
  "id": "CVE-2026-123655",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T12:17:20.657",
  "lastModified": "2026-11-06T15:17:20.273",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Moodle. Insufficient access control checks on H5P content files allow unauthenticated remote attackers to view restricted materials, including content stored in the system context and files belonging to hidden or unavailable course modules. This issue results in unauthorized information disclosure of protected content."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://github.com/moodle/moodle",
          "packageName": "moodle",
          "versions": [
            {
              "version": "4.5.0",
              "lessThan": "4.5.15",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "5.0.0",
              "lessThan": "5.0.11",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "5.1.0",
              "lessThan": "5.1.8",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "5.2.0",
              "lessThan": "5.2.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-06T13:51:35.603019Z",
          "id": "CVE-2026-123655",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-123655",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2568053",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/moodle/moodle/commit/4b42ce4ed1d132214fd4b7d4b5f4f0387ec28a49",
      "source": "[email protected]"
    },
    {
      "url": "https://moodle.org/mod/forum/discuss.php?d=482830",
      "source": "[email protected]"
    }
  ]
}