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CVE-2021-25094

Estado: ModificadaAlta (8.1)—

The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.

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)

Brandexponents — Tatsu

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-25094",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
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          "value": "CWE-306"
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      "description": [
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      "value": "The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot \".\", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker."
    },
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      "lang": "es",
      "value": "La acción add_custom_font del plugin Tatsu de WordPress versiones anteriores a 3.3.12, puede ser usada sin autenticación previa para subir un archivo zip falso que está descomprimido en el directorio de subida de WordPress. Al añadir un shell PHP con un nombre de archivo que comienza con un punto \".\", esto puede omitir el control de extensión implementado en el plugin. Además, se presenta una condición de carrera en el proceso de extracción del zip que hace que el archivo shell viva el tiempo suficiente en el sistema de archivos para ser llamado por un atacante"
    }
  ],
  "lastModified": "2026-06-17T03:41:27.090",
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