Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mycomplianceoffice | Mycomplianceoffice | 25.3.3.1 |
Related Weaknesses (CWE)
References
- https://cert.pl/en/posts/2026/07/CVE-2026-53902Third Party Advisory
- https://mco.mycomplianceoffice.com/Product
FAQ
What is CVE-2026-53906?
CVE-2026-53906 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 arbitrar...
How severe is CVE-2026-53906?
CVE-2026-53906 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53906?
Check the references section above for vendor advisories and patch information. Affected products include: Mycomplianceoffice Mycomplianceoffice.