Arbitrary file upload in Sim

CVE-2025-9800

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…

EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
  • cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
  • cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
  • cna@vuldb.com (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
  • cna@vuldb.com (issue-tracking, Patch, Issue Tracking)
  • cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking, Vendor Advisory)
  • cna@vuldb.com (Patch, patch)

Frequently asked questions

What is CVE-2025-9800?
CVE-2025-9800 is a medium-severity vulnerability in Sim, classified under Improper Access Control. CVSS score: 6.3/10. Published 2025-09-01.
How severe is CVE-2025-9800?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2025-9800 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.