Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-53908 Details

Description

MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can leverage these differences to enumerate valid usernames and email addresses. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://cert.pl/en/posts/2026/07/CVE-2026-53902 [email protected]Third Party Advisory
https://mco.mycomplianceoffice.com/ [email protected]Product

Weakness Enumeration

CWE-IDCWE NameSource
CWE-204Observable Response Discrepancy[email protected]

Affected Products

ProductVersions
mycomplianceoffice mycomplianceoffice
25.3.3.1

CPE

  • cpe:2.3:a:mycomplianceoffice:mycomplianceoffice:25.3.3.1:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-53908
NVD Published Date:
Jul 1, 2026
NVD Last Modified:
Jul 6, 2026
Source:
[email protected]
CVE-2026-53908 Details - Not Deferred