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CVE-2025-9800— SimStudioAI sim HTML File route.ts import unrestricted upload

Quick assessment

Affected
SimStudioAI sim
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.

Sim Studio是Sim Studio开源的一个AI代理工作流构建器。 Sim Studio存在安全漏洞，该漏洞源于对文件apps/sim/app/api/files/upload/route.ts中参数File的错误操作导致任意文件上传。

CVSS 6.3 · Medium EPSS 0.31% · P24

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2025-9800

Vulnerability Information
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Vulnerability Title
SimStudioAI sim HTML File route.ts import unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in SimStudioAI sim up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af. Affected by this issue is the function Import of the file apps/sim/app/api/files/upload/route.ts of the component HTML File Parser. Executing manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been made available to the public and could be exploited. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. This patch is called 45372aece5e05e04b417442417416a52e90ba174. A patch should be applied to remediate this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
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存在安全漏洞，该漏洞源于对文件apps/sim/app/api/files/upload/route.ts中参数File的错误操作导致任意文件上传。
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 ed9b9ad83f1a7c61f4392787fb51837d34eeb0af -

II. Public POCs for CVE-2025-9800

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III. Intelligence Information for CVE-2025-9800

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Vendor Advisories for CVE-2025-9800 (1)

IV. Related Vulnerabilities

Same product: sim
Same vendor: SimStudioAI
Same weakness: CWE-434

V. Comments for CVE-2025-9800

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