{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"PrestaShop/PrestaShop","product":"PrestaShop","source":"CNA: VulnCheck","vendor":"PrestaShop","versions":[{"lessThan":"8.2.9","status":"affected","version":"0","versionType":"semver"},{"lessThan":"9.2.1","status":"affected","version":"9.0.0","versionType":"semver"}]}],"cveId":"CVE-2026-71531","cwes":["CWE-863"],"description":"PrestaShop before 8.2.9 and 9.2.1 contains an authorization flaw in the Webservice API that allows an attacker holding a key restricted to one shop to act on data of every shop by submitting requests with id_shop=all or id_shop_group=N, which expand the shop context without validating the key's actual shop associations and cause shopHasRight() to evaluate the expanded set as a disjunction. Attackers can exploit this flaw via classes/webservice/WebserviceRequest.php to read, modify, or delete data belonging to shops they are not authorized for, including full customer records such as email addresses, secure_key, and password hashes across the installation.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.6,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},{"score":8.6,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":8.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794611839853,"publishedAt":1794609126723,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-3f36-4qv4-vfgh"},{"source":"CNA: VulnCheck","tags":["release-notes","patch"],"url":"https://github.com/PrestaShop/PrestaShop/releases/tag/9.2.1"},{"source":"CNA: VulnCheck","tags":["release-notes","patch"],"url":"https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.9"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/prestashop-webservice-api-authorization-bypass-via-id-shop-parameter"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.9"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/PrestaShop/PrestaShop/releases/tag/9.2.1"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-3f36-4qv4-vfgh"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/prestashop-webservice-api-authorization-bypass-via-id-shop-parameter"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/PrestaShop/PrestaShop/releases/tag/9.2.1"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/PrestaShop/PrestaShop/releases/tag/8.2.9"}],"revision":"e97da2f76d2be167fd64bd1a8c61e71d315cd7218f9e2e31a67501b822a409a7","sources":[{"modifiedAt":1794609126723,"name":"CNA: VulnCheck","retrievedAt":1794611353757,"url":"https://www.cve.org/CVERecord?id=CVE-2026-71531"},{"modifiedAt":1794611839853,"name":"NVD","retrievedAt":1794615620041,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71531"}],"ssvc":null,"status":"published","title":"PrestaShop Webservice API Authorization Bypass via id_shop Parameter","updatedAt":1794615620041}