Path Traversal Vulnerability in FileCodeBox by Vastsa
CVE-2025-51661

7.5HIGH

Key Information:

Vendor

Vastsa

Status
FileCodeBox
Vendor
CVE Published:
19 November 2025

What is CVE-2025-51661?

A path traversal vulnerability in FileCodeBox versions prior to 2.2 enables remote attackers to exploit the application by sending specially crafted POST requests. The flaw occurs in the SystemFileStorage.save_file method found in core/storage.py, where user-provided filenames are used to create save paths without adequate validation. As a result, attackers can manipulate file paths and perform arbitrary file writes outside the designated directory, leading to potential unauthorized access and compromised system integrity. The vulnerability specifically affects the /share/file/upload endpoint, which lacks proper authorization controls.

References

https://github.com/vastsa/FileCodeBox
https://github.com/vastsa/FileCodeBox/issues/349

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.