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CVE-2026-33399

Estado: AnalizadaAlta (7.7)—

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in version 4.6.2 for CVE-2026-30839 and CVE-2026-30840 is incomplete. The validate_webhook_url_for_ssrf() protection was added to the test* notification endpoints but not to the corresponding save* endpoints. An authenticated user can save an internal/private IP address as a notification URL, and when the cron job sendnotifications.php executes, the request is sent to the internal IP without any SSRF validation. This issue has been patched in version 4.7.0.

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.

AV:N, PR:L, sin UI: acceso remoto con autenticación. Usuario autenticado guarda URL SSRF en endpoint save* sin validación, que se ejecuta en cron job. Permite SSRF a IPs internas y lectura de datos sensibles.

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

Vulnerability ScanningThreat Intelligence ProgramSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Tecnologías afectadas (1)

Wallosapp — Wallos

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-33399",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
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            },
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            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-24T18:27:15.314169Z"
        }
      }
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        "source": "security-advisories@github.com",
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          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
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        "exploitabilityScore": 3.1
      }
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            }
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  "published": "2026-03-24T18:16:11.153",
  "references": [
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      "url": "https://github.com/ellite/Wallos/commit/e87387f0ebb540cd33e6dfda7181db9db650ecef#diff-d77202c5d47a3d7d4586e519f6f5e256da5fb2969fa8b9c75c399b2821e9de40",
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      "description": [
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        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.7.0, the SSRF fix applied in version 4.6.2 for CVE-2026-30839 and CVE-2026-30840 is incomplete. The validate_webhook_url_for_ssrf() protection was added to the test* notification endpoints but not to the corresponding save* endpoints. An authenticated user can save an internal/private IP address as a notification URL, and when the cron job sendnotifications.php executes, the request is sent to the internal IP without any SSRF validation. This issue has been patched in version 4.7.0."
    },
    {
      "lang": "es",
      "value": "Wallos es un rastreador de suscripciones personal de código abierto y autoalojable. Antes de la versión 4.7.0, la corrección de SSRF aplicada en la versión 4.6.2 para CVE-2026-30839 y CVE-2026-30840 está incompleta. La protección validate_webhook_url_for_ssrf() se añadió a los puntos finales de notificación test* pero no a los puntos finales de guardado save* correspondientes. Un usuario autenticado puede guardar una dirección IP interna/privada como URL de notificación, y cuando se ejecuta el trabajo cron sendnotifications.php, la solicitud se envía a la dirección IP interna sin ninguna validación de SSRF. Este problema ha sido parcheado en la versión 4.7.0."
    }
  ],
  "lastModified": "2026-06-17T10:37:25.530",
  "configurations": [
    {
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        {
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          "cpeMatch": [
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              "versionEndExcluding": "4.7.0"
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          "operator": "OR"
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      ]
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  "sourceIdentifier": "security-advisories@github.com"
}