CVE-2026-53906
High
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.
SeverityHigh
CVSS8.2
Exploit probability—
ProductMycomplianceoffice
PublishedJul 1, 2026
First seenJul 1, 2026
Weakness typeCWE-22Path traversalCWE-209CWE-209
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mycomplianceoffice mycomplianceoffice | 25.3.3.1 | — |
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