{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "4.0.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "41cbc9f08cc074ec09f736099579aac73c19d7b2"
            },
            {
              "fixed": "9ca839fac68a60641d8187a3ff9730ab09af33cb"
            },
            {
              "fixed": "08d80f46ef101389a8128232b1a208142c28a718"
            }
          ],
          "repo": "https://github.com/prestashop/ps_facetedsearch",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-m5f5-28qr-9g9r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-74"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54159.json"
  },
  "details": "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",
  "modified": "2026-07-22T05:29:58.498000177Z",
  "published": "2026-07-17T20:39:25.838Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/releases/tag/v4.0.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54159.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/security/advisories/GHSA-m5f5-28qr-9g9r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54159"
    },
    {
      "type": "FIX",
      "url": "https://github.com/PrestaShop/ps_facetedsearch/commit/9ca839fac68a60641d8187a3ff9730ab09af33cb"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ps_facetedsearch: PHP Object Injection in faceted search cache allows unauthenticated RCE"
}