CVE-2026-111633: Use of Hard-coded Cryptographic Key in SeriaWei ZKEACMS
Description
ZKEACMS versions up to 4.4 contain an authentication bypass vulnerability due to a hard-coded cryptographic key used for signing JWT bearer tokens. This flaw allows unauthenticated attackers to forge tokens with administrative privileges, enabling modification of articles and products and access to form submissions.
CVSS v4.0
Score 8.8high
Affected software
SeriaWei
ZKEACMS
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-111633 describes a vulnerability in SeriaWei's ZKEACMS through version 4.4 where a hard-coded HMAC-SHA256 signing key in JwtBearerDefaults.cs enables attackers to forge JWT bearer tokens. By crafting a token with the Name claim set to 'admin', attackers can bypass authentication and invoke ApiAuthorize endpoints, leading to unauthorized modification and data access.
Potential Impact
The vulnerability allows unauthenticated attackers to gain administrative access to the CMS REST API, resulting in unauthorized modification of content (articles and products) and unauthorized reading of form submissions. This compromises the integrity and confidentiality of the system's data.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the API endpoints and monitor for suspicious token usage if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-16T14:31:12.512Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad2640e2cdf04f656199561
Added to database: 10/16/2026, 17:51:10 UTC
Last enriched: 10/16/2026, 18:48:22 UTC
Last updated: 10/16/2026, 19:03:25 UTC
Views: 2
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