Unrestricted File Upload Vulnerability in Freo2 by Refirio
CVE-2026-67243

8.6HIGH

Key Information:

Vendor

Refirio

Status
Freo2
Vendor
CVE Published:
4 August 2026

What is CVE-2026-67243?

The Freo2 product provided by Refirio is susceptible to a vulnerability that allows users with administrative privileges to upload files without proper validation. This flaw enables the upload of files that can execute arbitrary operating system commands, posing a significant security risk to systems utilizing this application. It is crucial for administrators to apply security patches and implement stringent file type validation mechanisms to mitigate the risks associated with this vulnerability.

Affected Version(s)

freo2 0

References

https://github.com/refirio/freo2/commits/main/
https://jvn.jp/en/jp/JVN52865575/

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

CVSS V3.0

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.