CVE-2026-5203

| EUVD-2026-17508 MEDIUM
2026-03-31 VulDB GHSA-6c3w-cf6g-qmgh
5.1
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

4
PoC Detected
Apr 01, 2026 - 14:24 vuln.today
Public exploit code
Analysis Generated
Mar 31, 2026 - 16:00 vuln.today
EUVD ID Assigned
Mar 31, 2026 - 16:00 euvd
EUVD-2026-17508
CVE Published
Mar 31, 2026 - 15:45 nvd
MEDIUM 5.1

Description

A vulnerability was found in CMS Made Simple up to 2.2.22. This impacts the function _copyFilesToFolder in the library modules/UserGuide/lib/class.UserGuideImporterExporter.php of the component UserGuide Module XML Import. The manipulation results in path traversal. It is possible to launch the attack remotely. The exploit has been made public and could be used. This issue has been reported early to the project. They confirmed, that "this has already been discovered and fixed for the next release."

Analysis

Path traversal in CMS Made Simple UserGuide Module XML Import functionality allows authenticated high-privilege attackers to manipulate file operations in the _copyFilesToFolder function, enabling arbitrary file placement on the server with limited confidentiality and integrity impact. The vulnerability affects CMS Made Simple up to version 2.2.22, requires high-level privileges to exploit remotely, and vendor has confirmed a fix for a future release; publicly available exploit code exists but real-world risk remains moderate due to privilege requirements.

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Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: +20

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CVE-2026-5203 vulnerability details – vuln.today

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