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CVE-2021-43403

Status: ModifiedMedium (6.5)—

An issue was discovered in FusionPBX before 4.5.30. The log_viewer.php Log View page allows an authenticated user to choose an arbitrary filename for download (i.e., not necessarily freeswitch.log in the intended directory).

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 (1)

Fusionpbx — Fusionpbx

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-43403",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
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      ]
    }
  ],
  "published": "2022-09-29T03:15:14.813",
  "references": [
    {
      "url": "https://github.com/fusionpbx/fusionpbx/commit/57b7bf0d6b67bda07d550b07d984a44755510d9c",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/fusionpbx/fusionpbx/commit/57b7bf0d6b67bda07d550b07d984a44755510d9c",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in FusionPBX before 4.5.30. The log_viewer.php Log View page allows an authenticated user to choose an arbitrary filename for download (i.e., not necessarily freeswitch.log in the intended directory)."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en FusionPBX versiones anteriores a 4.5.30. La página log_viewer.php Log View permite a un usuario autenticado elegir un nombre de archivo arbitrario para su descarga (es decir, no necesariamente freeswitch.log en el directorio previsto)"
    }
  ],
  "lastModified": "2026-06-17T04:10:55.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9CEEA006-B747-44B0-9032-5F3CBE23C699",
              "versionEndExcluding": "4.5.30"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}