CVE-2026-54159

{
  "id": "CVE-2026-54159",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-17T21:17:07.963",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PrestaShop ps_facetedsearch is a module that adds layered navigation filters. From 3.0.0 until 4.0.4, the ps_facetedsearch module rebuilds selected search filters from the request URL, and the value of a slider filter, price or weight, is taken from the URL without sufficient validation and stored in an internal filter-block cache where it is serialized and later read back with a raw native unserialize() in src/Filters/Block.php. By crafting that value, an unauthenticated attacker can smuggle a malicious serialized PHP object into the cache, and when it is deserialized, a gadget chain writes an arbitrary PHP file inside the modules/ps_facetedsearch/ directory, which is then used as a webshell to run commands on the server. This issue is fixed in version 4.0.4."
    },
    {
      "lang": "es",
      "value": "PrestaShop ps_facetedsearch es un módulo que añade filtros de navegación por capas. Desde la versión 3.0.0 hasta la 4.0.4, el módulo ps_facetedsearch reconstruye los filtros de búsqueda seleccionados a partir de la URL de la solicitud, y el valor de un filtro deslizante, precio o peso, se toma de la URL sin validación suficiente y se almacena en una caché interna de bloques de filtro donde se serializa y luego se vuelve a leer con una función unserialize() nativa en bruto en src/Filters/Block.php. Al manipular ese valor, un atacante no autenticado puede introducir un objeto PHP serializado malicioso en la caché, y cuando se deserializa, una cadena de gadgets escribe un archivo PHP arbitrario dentro del directorio modules/ps_facetedsearch/, que luego se utiliza como una webshell para ejecutar comandos en el servidor. Este problema se corrige en la versión 4.0.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "PrestaShop",
          "product": "ps_facetedsearch",
          "versions": [
            {
              "version": ">= 3.0.0, < 4.0.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-20T13:55:55.290717Z",
          "id": "CVE-2026-54159",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/PrestaShop/ps_facetedsearch/commit/9ca839fac68a60641d8187a3ff9730ab09af33cb",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrestaShop/ps_facetedsearch/releases/tag/v4.0.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrestaShop/ps_facetedsearch/security/advisories/GHSA-m5f5-28qr-9g9r",
      "source": "[email protected]"
    }
  ]
}