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CVE-2022-45134

Estado: AnalizadaCrítica (9.8)—

Mahara 21.10 before 21.10.6, 22.04 before 22.04.4, and 22.10 before 22.10.1 deserializes user input unsafely during skin import. A particularly structured XML file could cause code execution when being processed.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Mahara deserializa entrada XML sin validar (CWE-502) en importación de skin accesible remotamente sin autenticación (AV:N, PR:N), permitiendo RCE. Vector de red sin privilegios dicta T1190; ejecución de código arbitrario es T1059.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Mahara — Mahara

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-45134",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-45134",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-26T13:08:31.025526Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-08-22T19:15:37.997",
  "references": [
    {
      "url": "https://bugs.launchpad.net/mahara/+bug/1993082",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://mahara.org/interaction/forum/topic.php?id=9353",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mahara 21.10 before 21.10.6, 22.04 before 22.04.4, and 22.10 before 22.10.1 deserializes user input unsafely during skin import. A particularly structured XML file could cause code execution when being processed."
    },
    {
      "lang": "es",
      "value": "Mahara 21.10 (anterior a 21.10.6), 22.04 (anterior a 22.04.4) y 22.10 (anterior a 22.10.1) deserializa la entrada del usuario de forma insegura durante la importación de la apariencia. Un archivo XML con una estructura particular podría provocar la ejecución de código durante su procesamiento."
    }
  ],
  "lastModified": "2026-06-17T05:09:25.603",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2A77837C-B28C-4AB9-8237-4BFD37CFEAE6",
              "versionEndExcluding": "21.10.6",
              "versionStartIncluding": "21.10.0"
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5E92481-0669-40B6-B204-B6B4346EE473",
              "versionEndExcluding": "22.04.4",
              "versionStartIncluding": "22.04.0"
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E4A86D29-05F0-4808-B307-F0DEECA32E93",
              "versionEndExcluding": "22.10.1",
              "versionStartIncluding": "22.10.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}