« Volver al listado

CVE-2025-54593

Estado: AnalizadaAlta (7.2)—

FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.1 and below, an authenticated administrator user can execute arbitrary code on the FreshRSS server by modifying the update URL to one they control, and gain code execution after running an update. After successfully executing code, user data including hashed passwords can be exfiltrated, the instance can be defaced when file permissions allow. Malicious code can be inserted into the instance to steal plaintext passwords, among others. This is fixed in version 1.26.2.

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.

CWE-94 (eval/ejecución dinámica de código) con AV:N PR:H permite ejecutar código arbitrario modificando la URL de actualización (T1210). El atacante consigue ejecución de comandos (T1059), acceso a datos de usuarios incluyendo contraseñas (T1005) y modificación de contenido (T1565).

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 ManagementNetwork SegmentationDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based Content

Tecnologías afectadas (1)

Freshrss — Freshrss

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-54593",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-54593",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-01T18:31:35.795084Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "FreshRSS",
          "product": "FreshRSS",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.26.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-08-01T18:15:55.740",
  "references": [
    {
      "url": "https://github.com/FreshRSS/FreshRSS/commit/dbdadbb4107878d9233f635c31a88afe45957101",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/FreshRSS/FreshRSS/pull/7477",
      "tags": [
        "Issue Tracking"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/FreshRSS/FreshRSS/releases/tag/1.26.2",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-jcww-48g9-wf57",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.1 and below, an authenticated administrator user can execute arbitrary code on the FreshRSS server by modifying the update URL to one they control, and gain code execution after running an update. After successfully executing code, user data including hashed passwords can be exfiltrated, the instance can be defaced when file permissions allow. Malicious code can be inserted into the instance to steal plaintext passwords, among others. This is fixed in version 1.26.2."
    },
    {
      "lang": "es",
      "value": "FreshRSS es un agregador RSS gratuito y autoalojado. En las versiones 1.26.1 y anteriores, un usuario administrador autenticado puede ejecutar código arbitrario en el servidor FreshRSS modificando la URL de actualización a una que controle y obtener la ejecución del código tras ejecutar una actualización. Tras ejecutar el código correctamente, se pueden extraer datos del usuario, incluidas las contraseñas hash, y la instancia puede desfigurarse cuando los permisos de archivo lo permitan. Se puede insertar código malicioso en la instancia para robar contraseñas de texto plano, entre otras cosas. Esto se solucionó en la versión 1.26.2."
    }
  ],
  "lastModified": "2026-06-17T09:40:21.723",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:freshrss:freshrss:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5750A689-0869-499D-8A26-E5088B31DDF4",
              "versionEndExcluding": "1.26.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}