CVE-2025-53548— @clerk/backend Performs Insufficient Verification of Data Authenticity
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I. Basic Information for CVE-2025-53548
Vulnerability Information
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Vulnerability Title
@clerk/backend Performs Insufficient Verification of Data Authenticity
Source: NVD (National Vulnerability Database)
Vulnerability Description
Clerk helps developers build user management. Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issue was resolved in @clerk/backend 2.4.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对数据真实性的验证不充分
Source: NVD (National Vulnerability Database)
Vulnerability Title
Official Clerk JavaScript SDKs 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Official Clerk JavaScript SDKs是Clerk开源的一个用于 Clerk 身份验证的官方 Javascript 存储库。 Official Clerk JavaScript SDKs存在数据伪造问题漏洞，该漏洞源于verifyWebhook验证不足，可能导致接受未签名webhook事件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| clerk | javascript | < 2.4.0 | - |
II. Public POCs for CVE-2025-53548
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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Vaultwarden WebAuthn credential metadata tampered before sig - CVE-2026-43534
OpenClaw < 2026.4.10 - Unsanitized External Input in Agent H
V. Comments for CVE-2025-53548
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