CVE-2026-53906EPSS p42.2%

CVE-2026-53906CVE-2026-53906

mycomplianceoffice / mycomplianceoffice

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.

Scoring

CVSS 8.2 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
EPSS0.52% probability of exploitation · percentile 42.2% · 2026-10-05T12:00:23Z
Last modified2026-07-06
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.