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CVE-2025-15099— simstudioai sim CRON Secret internal.ts improper authentication

Quick assessment

Affected
simstudioai sim
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sim Studio是Sim Studio开源的一个AI代理工作流构建器。 Sim Studio 0.5.27及之前版本存在安全漏洞，该漏洞源于对文件apps/sim/lib/auth/internal.ts中参数INTERNAL_API_SECRET的错误操作，可能导致身份验证不当。

CVSS 7.3 · High EPSS 0.80% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-15099

Vulnerability Information
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Vulnerability Title
simstudioai sim CRON Secret internal.ts improper authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in simstudioai sim up to 0.5.27. This vulnerability affects unknown code of the file apps/sim/lib/auth/internal.ts of the component CRON Secret Handler. The manipulation of the argument INTERNAL_API_SECRET leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The identifier of the patch is e359dc2946b12ed5e45a0ec9c95ecf91bd18502a. Applying a patch is the recommended action to fix this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Sim Studio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sim Studio是Sim Studio开源的一个AI代理工作流构建器。 Sim Studio 0.5.27及之前版本存在安全漏洞，该漏洞源于对文件apps/sim/lib/auth/internal.ts中参数INTERNAL_API_SECRET的错误操作，可能导致身份验证不当。
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
simstudioai sim 0.5.0 -

II. Public POCs for CVE-2025-15099

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11289 chars
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III. Intelligence Information for CVE-2025-15099

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Patches & Fixes for CVE-2025-15099 (2)

Vendor Advisories for CVE-2025-15099 (3)

Other References for CVE-2025-15099 (2)

IV. Related Vulnerabilities

Same product: sim
Same vendor: simstudioai
Same weakness: CWE-287

V. Comments for CVE-2025-15099

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