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CVE-2022-29221

Estado: ModificadaAlta (8.8)—💥 PoC

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.45 and 4.1.1, template authors could inject php code by choosing a malicious {block} name or {include} file name. Sites that cannot fully trust template authors should upgrade to versions 3.1.45 or 4.1.1 to receive a patch for this issue. There are currently no known workarounds.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (3)

Debian — Debian LinuxFedoraproject — FedoraSmarty — Smarty

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2022-29221",
  "cveTags": [],
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          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "no"
            },
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          "version": "2.0.3",
          "timestamp": "2025-04-23T15:52:58.668263Z"
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      "lang": "en",
      "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.45 and 4.1.1, template authors could inject php code by choosing a malicious {block} name or {include} file name. Sites that cannot fully trust template authors should upgrade to versions 3.1.45 or 4.1.1 to receive a patch for this issue. There are currently no known workarounds."
    },
    {
      "lang": "es",
      "value": "Smarty es un motor de plantillas para PHP, que facilita la separación de la presentación (HTML/CSS) de la lógica de la aplicación. En versiones anteriores a 3.1.45 y 4.1.1, los autores de plantillas podían inyectar código php eligiendo un nombre de archivo {block} o {include} malicioso. Los sitios que no pueden confiar plenamente en los autores de plantillas deben actualizar a versiones 3.1.45 o 4.1.1 para recibir un parche para este problema. Actualmente no se presentan mitigaciones conocidas"
    }
  ],
  "lastModified": "2026-06-17T04:39:51.637",
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