SimStudioAI sim up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af HTML File Parser route.ts import unrestricted upload
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in SimStudioAI sim up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af and classified as critical. This affects the function Import of the file apps/sim/app/api/files/upload/route.ts of the component HTML File Parser. The manipulation of the argument File leads to unrestricted upload.
This vulnerability is referenced as CVE-2025-9800. Remote exploitation of the attack is possible. Furthermore, an exploit is available.
This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. To fix this issue, it is recommended to deploy a patch.
Details
A vulnerability was found in SimStudioAI sim up to ed9b9ad83f1a7c61f4392787fb51837d34eeb0af and classified as critical. This issue affects the function import of the file apps/sim/app/api/files/upload/route.ts of the component HTML File Parser. The manipulation of the argument file with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.
It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-9800. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.
The exploit is available at github.com. It is declared as proof-of-concept.
Applying the patch 45372aece5e05e04b417442417416a52e90ba174 is able to eliminate this problem. The bugfix is ready for download at github.com.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-26365). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
Version
License
Website
- Product: https://github.com/simstudioai/sim/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.2VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔒
CNA Base Score: 6.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Unrestricted uploadCWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: 45372aece5e05e04b417442417416a52e90ba174
Timeline
09/01/2025 Advisory disclosed09/01/2025 VulDB entry created
11/15/2025 VulDB entry last update
Sources
Product: github.comAdvisory: 958
Status: Confirmed
Confirmation: 🔒
CVE: CVE-2025-9800 (🔒)
GCVE (CVE): GCVE-0-2025-9800
GCVE (VulDB): GCVE-100-322115
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 09/01/2025 14:43Updated: 11/15/2025 07:46
Changes: 09/01/2025 14:43 (63), 09/02/2025 02:04 (30), 09/02/2025 06:44 (1), 11/15/2025 07:46 (10)
Complete: 🔍
Submitter: ZAST.AI
Cache ID: 216::103
Submit
Accepted
- Submit #641129: simstudioai https://github.com/simstudioai/sim <=1.0.0 Dangerous type of file upload (CWE-434) (by ZAST.AI)
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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