CVE-2026-53907 - Vulnerability Details - OpenCVE

MCO is vulnerable to Stored Cross‑Site Scripting (XSS) via the application logo upload functionality. An attacker with the ability to change the application logo can upload a crafted SVG file containing malicious JavaScript code that is executed when the logo is rendered or opened. 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 Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

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

No data.

No data.

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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 Stored Cross‑Site Scripting (XSS) via the application logo upload functionality. An attacker with the ability to change the application logo can upload a crafted SVG file containing malicious JavaScript code that is executed when the logo is rendered or opened. 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		Stored Cross‑Site Scripting in MCO
Weaknesses		CWE-79
References		https://cert.pl/en/posts/2026/07/CVE-2026-53902 https://mco.mycomplianceoffice.com/
Metrics		cvssV4_0 `{'score': 4.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published: 2026-07-01T11:58:59.627Z

Updated: 2026-07-01T13:38:34.349Z

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

Link: CVE-2026-53907

Vulnrichment

Updated: 2026-07-01T13:38:29.972Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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