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CVE-2024-45291

Estado: AnalizadaAlta (8.8)—

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an attacker to construct an XLSX file that links images from arbitrary paths. When embedding images has been enabled in HTML writer with `$writer->setEmbedImages(true);` those files will be included in the output as `data:` URLs, regardless of the file's type. Also URLs can be used for embedding, resulting in a Server-Side Request Forgery vulnerability. When embedding images has been enabled, an attacker can read arbitrary files on the server and perform arbitrary HTTP GET requests.

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Note that any PHP protocol wrappers can be used, meaning that if for example the `expect://` wrapper is enabled, also remote code execution is possible. This issue has been addressed in release versions 1.29.2, 2.1.1, and 2.3.0. All users are advised to upgrade. there are no known workarounds for this vulnerability.

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.

Red con PR:L permite T1210. Acceso a archivos arbitrarios (T1005) y SSRF (T1090.004) confirmados. Wrappers PHP habilitados permiten RCE (T1059) en escenarios específicos.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramSSL/TLS InspectionRestrict Web-Based Content

Tecnologías afectadas (1)

Phpoffice — Phpspreadsheet

CWE

Referencias

JSON original (NVD)

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      "value": "PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an attacker to construct an XLSX file that links images from arbitrary paths. When embedding images has been enabled in HTML writer with `$writer->setEmbedImages(true);` those files will be included in the output as `data:` URLs, regardless of the file's type. Also URLs can be used for embedding, resulting in a Server-Side Request Forgery vulnerability. When embedding images has been enabled, an attacker can read arbitrary files on the server and perform arbitrary HTTP GET requests. Note that any PHP protocol wrappers can be used, meaning that if for example the `expect://` wrapper is enabled, also remote code execution is possible. This issue has been addressed in release versions 1.29.2, 2.1.1, and 2.3.0. All users are advised to upgrade. there are no known workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "PHPSpreadsheet es una librería PHP pura para leer y escribir archivos de hojas de cálculo. Un atacante puede construir un archivo XLSX que vincule imágenes desde rutas arbitrarias. Cuando se ha habilitado la incrustación de imágenes en el escritor HTML con `$writer-&gt;setEmbedImages(true);`, esos archivos se incluirán en la salida como URL `data:`, independientemente del tipo de archivo. También se pueden usar URL para incrustar, lo que da como resultado una vulnerabilidad de Server-Side Request Forgery. Cuando se ha habilitado la incrustación de imágenes, un atacante puede leer archivos arbitrarios en el servidor y realizar solicitudes HTTP GET arbitrarias. Tenga en cuenta que se puede utilizar cualquier contenedor de protocolo PHP, lo que significa que si, por ejemplo, se habilita el contenedor `expect://`, también es posible la ejecución remota de código. Este problema se ha solucionado en las versiones de lanzamiento 1.29.2, 2.1.1 y 2.3.0. Se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T07:53:57.777",
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