GHSA-4v4h-58rp-w43wHighCVSS 8.6
ZKEACMS through 4.4 contains an authentication bypass vulnerability that allows unauthenticated...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-111633
- https://github.com/SeriaWei/ZKEACMS/issues/531
- 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://hackmd.io/@hieuPenguinnn/zkeacms-hardcoded-jwt-signing-key-admin-auth-bypass
- https://www.vulncheck.com/advisories/zkeacms-through-4.4-authentication-bypass-via-hard-coded-jwt-signing-key
- https://github.com/advisories/GHSA-4v4h-58rp-w43w