{"id":"CVE-2026-54159","summary":"ps_facetedsearch: PHP Object Injection in faceted search cache allows unauthenticated RCE","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.","aliases":["GHSA-m5f5-28qr-9g9r"],"modified":"2026-07-22T05:29:58.498000177Z","published":"2026-07-17T20:39:25.838Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54159.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-74"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/prestashop/ps_facetedsearch","events":[{"introduced":"41cbc9f08cc074ec09f736099579aac73c19d7b2"},{"fixed":"9ca839fac68a60641d8187a3ff9730ab09af33cb"},{"fixed":"08d80f46ef101389a8128232b1a208142c28a718"}],"database_specific":{"extracted_events":[{"introduced":"3.0.0"},{"fixed":"4.0.4"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v4.0.3","v4.0.2","v4.0.1","v4.0.0","v3.16.1","v3.16.0","v3.15.1","v3.15.0","v3.14.1","v3.14.0","v3.13.2","v3.13.1","v3.13.0","v3.12.1","v3.12.0","v3.11.1","v3.11.0","v3.10.0","v3.9.0","v3.8.0","v3.6.0","v3.5.0","v3.4.1","v3.4.0","v3.3.0","untagged-45df9cf520cc07d9bd44","v3.2.1","v3.2.0","v3.1.0","v3.0.7","v3.0.6","v3.0.5","v3.0.4","v3.0.3","v3.0.2","v3.0.1","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54159.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}