CVE-2026-40548
Deferred Deferred - Pending Action

SOPlanning File Upload Path Traversal Vulnerability

Vulnerability report for CVE-2026-40548, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-06-01

Last updated on: 2026-06-01

Assigner: CERT.PL

Description

SOPlanning does not verify uploaded file extension. An authenticated attacker with access to the backup functionality can upload a crafted ZIP archive containing a legitimate user.csv file alongside a malicious file, which is extracted on the server. When combined with CVE-2026-40547 (Path Traversal), the malicious file (e.g., a PHP script) can be placed in a web-accessible location and executed via the browser. This issue affects SOPlanning version 1.55 and below.

CVSS Scores

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Meta Information

Published
2026-06-01
Last Modified
2026-06-01
Generated
2026-07-11
AI Q&A
2026-06-01
EPSS Evaluated
2026-07-10
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
soplanning soplanning to 1.55 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in SOPlanning version 1.55 and below, where the software does not verify the extension of uploaded files during the backup functionality. An authenticated attacker can upload a crafted ZIP archive containing both a legitimate user.csv file and a malicious file. The malicious file is extracted on the server.

When this vulnerability is combined with CVE-2026-40547, which is a path traversal vulnerability, the attacker can place the malicious file (such as a PHP script) into a web-accessible location on the server. This allows the attacker to execute the malicious script through a web browser.

Impact Analysis

This vulnerability can allow an authenticated attacker to execute arbitrary code on the server by uploading and executing malicious files. This can lead to unauthorized access, data compromise, server control, and potentially further exploitation of the system.

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