{"id":"CVE-2026-111633","revision":"970e59776d5247a08a1ee1f91e2be24d","records":[{"revision":"970e59776d5247a08a1ee1f91e2be24d","observedAt":"2026-10-23T19:48:20.628+00:00","statement":{"source":"cve-program","id":"CVE-2026-111633","aliases":[],"title":"ZKEACMS through 4.4 Authentication Bypass via Hard-Coded JWT Signing Key","description":"ZKEACMS through 4.4 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge REST API JWT bearer tokens using a hard-coded HMAC-SHA256 signing key in JwtBearerDefaults.cs. Attackers can sign a token with the Name claim set to 'admin' to call ApiAuthorize endpoints, modifying articles and products and reading form submissions.","state":0,"publishedAt":"2026-10-16T17:39:06.226+00:00","modifiedAt":"2026-10-23T18:31:57.561+00:00","affected":[{"ecosystem":"Vendor product","name":"ZKEACMS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SeriaWei\",\n                    \"product\": \"ZKEACMS\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"4.4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/SeriaWei/ZKEACMS\",\n                    \"repo\": \"https://github.com/SeriaWei/ZKEACMS\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N","score":8.8,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","score":8.6,"severity":"HIGH"}],"references":["https://hackmd.io/@hieuPenguinnn/zkeacms-hardcoded-jwt-signing-key-admin-auth-bypass","https://github.com/SeriaWei/ZKEACMS/blob/v4.4/src/ZKEACMS/Api/JwtBearerDefaults.cs#L14-L19","https://github.com/SeriaWei/ZKEACMS/blob/v4.4/src/ZKEACMS/BuilderAuthentication.cs#L41-L52","https://github.com/SeriaWei/ZKEACMS/issues/531","https://www.vulncheck.com/advisories/zkeacms-through-4.4-authentication-bypass-via-hard-coded-jwt-signing-key"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111633","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111633","identifiers":["CVE-2026-111633"]},"retained":false,"historicalAffected":[]}],"coverage":[]}