{"id":"CVE-2026-54390","revision":"0227210b736849a281d65afa8f3bff0b","records":[{"revision":"0227210b736849a281d65afa8f3bff0b","observedAt":"2026-10-29T21:48:56.968+00:00","statement":{"source":"cve-program","id":"CVE-2026-54390","aliases":[],"title":"JTL Shop < 5.7.2 Server-Side Template Injection via Smarty Renderer","description":"JTL Shop versions 5.2.0 through 5.7.1 contains a server-side template injection vulnerability that allows unauthenticated attackers to inject malicious template syntax due to unsanitized user-supplied input passed to the Smarty template engine. Attackers can exploit this flaw to read sensitive server-side values such as database credentials and encryption keys, and on versions 5.4.0 through 5.7.1, leverage registered Smarty modifiers including unserialize and file_get_contents to write a webshell to the web root and execute arbitrary commands as the web server user.","state":0,"publishedAt":"2026-06-18T17:33:46.23+00:00","modifiedAt":"2026-10-29T20:19:30.424+00:00","affected":[{"ecosystem":"Vendor product","name":"JTL Shop","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"affected\",\n                    \"vendor\": \"JTL Software\",\n                    \"product\": \"JTL Shop\",\n                    \"versions\": [\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"5.0.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"5.1.8\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"5.2.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"5.4.0\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"5.4.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"5.5.4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"5.6.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"5.6.2\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"5.7.0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"5.7.2\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"5.5.4\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"5.6.2\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"5.7.2\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://sansec.io/research/jtl-shop-ssti-rce","https://forum.jtl-software.de/threads/jtl-shop-5-7-aktuell-5-7-2.246278/","https://www.vulncheck.com/advisories/jtl-shop-server-side-template-injection-via-smarty-renderer"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54390","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54390","identifiers":["CVE-2026-54390"]},"retained":false,"historicalAffected":[]}],"coverage":[]}