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CVE-2026-27625

Estado: AnalizadaMedia (6.5)—

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files and compromise data integrity, with further impact depending on writable paths. The issue was fixed in version 2.5.2.

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).

Tecnologías afectadas (1)

Stirling — Stirling PDF

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-27625",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-27625",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-20T15:36:55.042694Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      },
      {
        "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:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "Stirling-Tools",
          "product": "Stirling-PDF",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.5.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-20T09:16:13.857",
  "references": [
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.5.2",
      "tags": [
        "Patch",
        "Product"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-wccq-mg6x-2w22",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-23"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files and compromise data integrity, with further impact depending on writable paths. The issue was fixed in version 2.5.2."
    },
    {
      "lang": "es",
      "value": "Stirling-PDF es una aplicación web alojada localmente que realiza diversas operaciones en archivos PDF. En versiones anteriores a la 2.5.2, el endpoint /API/v1/convert/markdown/pdf extrae entradas ZIP proporcionadas por el usuario sin comprobaciones de ruta. Cualquier usuario autenticado puede escribir archivos fuera del directorio de trabajo temporal previsto, lo que lleva a la escritura arbitraria de archivos con los privilegios del usuario del proceso de Stirling-PDF (stirlingpdfuser). Esto puede sobrescribir archivos escribibles y comprometer la integridad de los datos, con un impacto adicional dependiendo de las rutas escribibles. El problema se solucionó en la versión 2.5.2."
    }
  ],
  "lastModified": "2026-06-17T10:27:24.717",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:stirling:stirling_pdf:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EE82913D-A442-4C18-847F-741630FC4CD0",
              "versionEndExcluding": "2.5.2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}