CVE-2026-53904

MCO is vulnerable to Account Denial of Service due to improper implementation of password reset functionality. Each password reset request invalidates previously set password as well as previously issued temporary passwords, furthermore, password resets are not limited in any way. An attacker who provides victim's email and answer to their security question, can successfully initiate the reset process and continuously invalidate credentials, effectively locking the victim out of their account. Answering security questions has a limited number of tries which lowers the risk of this vulnerability. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.
References
Configurations

Configuration 1 (hide)

cpe:2.3:a:mycomplianceoffice:mco:25.3.3.1:*:*:*:*:*:*:*

History

06 Jul 2026, 14:33

Type Values Removed Values Added
References () https://cert.pl/en/posts/2026/07/CVE-2026-53902 - () https://cert.pl/en/posts/2026/07/CVE-2026-53902 - Third Party Advisory
References () https://mco.mycomplianceoffice.com/ - () https://mco.mycomplianceoffice.com/ - Product
First Time Mycomplianceoffice mco
Mycomplianceoffice
CPE cpe:2.3:a:mycomplianceoffice:mco:25.3.3.1:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.1

01 Jul 2026, 13:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-01 13:17

Updated : 2026-07-06 14:33


NVD link : CVE-2026-53904

Mitre link : CVE-2026-53904

CVE.ORG link : CVE-2026-53904


JSON object : View

Products Affected

mycomplianceoffice

  • mco
CWE
CWE-307

Improper Restriction of Excessive Authentication Attempts

CWE-640

Weak Password Recovery Mechanism for Forgotten Password