Vulnerability Details CVE-2026-53907
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 17.0%
CVSS Severity
CVSS v3 Score 5.4
Products affected by CVE-2026-53907
-
cpe:2.3:a:mycomplianceoffice:mycomplianceoffice:25.3.3.1