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CVE-2026-24421

Estado: AnalizadaMedia (6.5)—

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17.

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).

Tecnologías afectadas (1)

Phpmyfaq — Phpmyfaq

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-24421",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-24421",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-26T16:14:22.955589Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "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": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "thorsten",
          "product": "phpMyFAQ",
          "versions": [
            {
              "status": "affected",
              "version": "< 4.0.17"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-01-24T02:15:49.507",
  "references": [
    {
      "url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-wm8h-26fv-mg7g",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below have flawed authorization logic which exposes the /api/setup/backup endpoint to any authenticated user despite their permissions. SetupController.php uses userIsAuthenticated() but does not verify that the requester has configuration/admin permissions. Non-admin users can trigger a configuration backup and retrieve its path. The endpoint only checks authentication, not authorization, and returns a link to the generated ZIP. This issue is fixed in version 4.0.17."
    },
    {
      "lang": "es",
      "value": "phpMyFAQ es una aplicación web de preguntas frecuentes de código abierto. Las versiones 4.0.16 e inferiores tienen una lógica de autorización defectuosa que expone el endpoint /API/setup/backup a cualquier usuario autenticado a pesar de sus permisos. SetupController.php utiliza userIsAuthenticated() pero no verifica que el solicitante tenga permisos de configuración/administrador. Los usuarios no administradores pueden activar una copia de seguridad de la configuración y recuperar su ruta. El endpoint solo comprueba la autenticación, no la autorización, y devuelve un enlace al ZIP generado. Este problema está solucionado en la versión 4.0.17."
    }
  ],
  "lastModified": "2026-06-17T10:23:02.817",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8A48918B-2C09-403F-A8A5-8179AE32363E",
              "versionEndExcluding": "4.0.17"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}