CVE-2026-29963

{
  "id": "CVE-2026-29963",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-18T18:17:21.517",
  "lastModified": "2026-10-19T22:10:00.130",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HSC MailInspector 5.3.3-7 has a Path Traversal vulnerability due to improper validation of user-supplied input in the /tap/dw.php endpoint. The text parameter is used to construct file paths without adequate normalization or restriction to a safe base directory. A remote attacker can exploit this flaw to access arbitrary files on the underlying operating system, resulting in unauthorized disclosure of sensitive information."
    },
    {
      "lang": "es",
      "value": "HSC MailInspector 5.3.3-7 tiene una vulnerabilidad de salto de ruta debido a una validación inadecuada de la entrada proporcionada por el usuario en el endpoint /tap/dw.php. El parámetro text se utiliza para construir rutas de archivo sin una normalización o restricción adecuada a un directorio base seguro. Un atacante remoto puede explotar esta falla para acceder a archivos arbitrarios en el sistema operativo subyacente, lo que resulta en la divulgación no autorizada de información sensible."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "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": "2026-05-19T13:03:22.351159Z",
          "id": "CVE-2026-29963",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hsclabs:mailinspector:5.3.3-7:*:*:*:*:*:*:*",
              "matchCriteriaId": "5A2C551A-C71C-468F-A438-7ED1F576338A"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/sql3t0/cve-disclosures",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/sql3t0/cve-disclosures/blob/main/02_-_CVE-2026-29963_LFI%2BPath_Traversal.md",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://hsclabs.com/pt-br/mailinspector/",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    }
  ]
}