Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-111633— ZKEACMS through 4.4 Authentication Bypass via Hard-Coded JWT Signing Key

Quick assessment

Affected
SeriaWei ZKEACMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZKEACMS 4.4 及以下版本存在身份验证绕过漏洞。由于 JwtBearerDefaults.cs 中硬编码了 HMAC-SHA256 签名密钥，未认证的攻击者可利用该密钥伪造 REST API 的 JWT Bearer 令牌。攻击者可以签发一个将 Name 声明设置为"admin"的令牌，从而调用 ApiAuthorize 端点，进而修改文章和产品，并读取表单提交内容。

CVSS 8.6 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
SeriaWei ZKEACMS ≤ 4.4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-111633

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ZKEACMS through 4.4 Authentication Bypass via Hard-Coded JWT Signing Key
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SeriaWei ZKEACMS 0 ~ 4.4 -

II. Public POCs for CVE-2026-111633

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-111633

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-111633 (2)

Proof of Concept for CVE-2026-111633 (2)

Security Blog Posts for CVE-2026-111633 (1)

IV. Related Vulnerabilities

Same product: ZKEACMS
Same vendor: SeriaWei
Same weakness: CWE-321

V. Comments for CVE-2026-111633

No comments yet

Leave a comment