FKIE_CVE-2026-54159

Vulnerability from fkie_nvd - Published: 2026-07-17 21:17 - Updated: 2026-07-17 21:17
Severity
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/PrestaShop/ps_facetedsearch/commit/9ca839fac68a60641d8187a3ff9730ab09af33cb
security-advisories@github.comhttps://github.com/PrestaShop/ps_facetedsearch/releases/tag/v4.0.4
security-advisories@github.comhttps://github.com/PrestaShop/ps_facetedsearch/security/advisories/GHSA-m5f5-28qr-9g9r
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ps_facetedsearch",
          "vendor": "PrestaShop",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 4.0.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-54159",
  "lastModified": "2026-07-17T21:17:07.963",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 10.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-17T21:17:07.963",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/commit/9ca839fac68a60641d8187a3ff9730ab09af33cb"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/releases/tag/v4.0.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/security/advisories/GHSA-m5f5-28qr-9g9r"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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