CVE-2020-37041
Unknown Unknown - Not Provided
Directory Traversal in OpenCTI 3.3.1 Allows Arbitrary File Read

Publication date: 2026-01-30

Last updated on: 2026-02-13

Assigner: VulnCheck

Description
OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint. An unauthenticated attacker can read arbitrary files from the filesystem by sending crafted GET requests with path traversal sequences (e.g., '../') in the URL. For example, requesting /static/css//../../../../../../../../etc/passwd returns the contents of /etc/passwd. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.
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Meta Information
Published
2026-01-30
Last Modified
2026-02-13
Generated
2026-06-16
AI Q&A
2026-01-31
EPSS Evaluated
2026-06-15
NVD
CVE-2020-37041
EUVD
EUVD-2020-30937
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
citeum opencti 3.3.1
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
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Executive Summary

OpenCTI 3.3.1 has a directory traversal vulnerability in its static/css endpoint. This means an unauthenticated attacker can send specially crafted GET requests containing path traversal sequences like '../' to access arbitrary files on the server's filesystem. For example, an attacker can retrieve sensitive files such as /etc/passwd by exploiting this flaw.

Impact Analysis

This vulnerability allows an attacker to read arbitrary files on the server without authentication, potentially exposing sensitive information such as system configuration files, user data, or credentials. This can lead to information disclosure and further exploitation of the affected system.

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