CVE-2026-111633 — ZKEACMS through 4.4 Authentication Bypass via Hard-Coded JWT Signing Key
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 sign…
Published: 2026-10-16 · CVSS: 8.8 · CVSS 4.0
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.
Source: CVE Program · Revision f6a1ec2617c75ab2904c463b0d44504dff84e042