CVE-2026-53906 - Vulnerability Details - OpenCVE

MCO is vulnerable to Path Disclosure and Path Traversal in file handling functionality related to data export and upload. Improper validation of the filename parameter allows writing files to arbitrary locations as well as indirect disclosure of absolute server paths through error messages. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

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References

Link	Providers
https://cert.pl/en/posts/2026/07/CVE-2026-53902
https://mco.mycomplianceoffice.com/

History

Wed, 01 Jul 2026 14:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 12:45:00 +0000

Type	Values Removed	Values Added
Description		MCO is vulnerable to Path Disclosure and Path Traversal in file handling functionality related to data export and upload. Improper validation of the filename parameter allows writing files to arbitrary locations as well as indirect disclosure of absolute server paths through error messages. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.
Title		Path Disclosure and Path Traversal in MCO
Weaknesses		CWE-209 CWE-22
References		https://cert.pl/en/posts/2026/07/CVE-2026-53902 https://mco.mycomplianceoffice.com/
Metrics		cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published: 2026-07-01T11:58:55.138Z

Updated: 2026-07-01T13:39:18.244Z

Reserved: 2026-06-11T07:44:52.179Z

Link: CVE-2026-53906

Vulnrichment

Updated: 2026-07-01T13:39:12.704Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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