CVE-2026-44400

MailEnable Enterprise Premium 10.55 and earlier contains an improper authorization vulnerability in the WebAdmin mobile portal that allows attackers to bypass authentication checks by reusing AuthenticationToken cookies generated for low-privileged users. Attackers can obtain a token from the WebMail login endpoint using the PersistentLogin parameter and replay it against the WebAdmin portal to perform highly privileged administrative actions.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.mailenable.com/Premium-ReleaseNotes.txt	Release Notes
https://www.vulncheck.com/advisories/mailenable-enterprise-premium-authorization-bypass-via-webadmin	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mailenable:mailenable:*:*:*:*:enterprise_premium:*:*:*

History

01 Jun 2026, 16:44

Type	Values Removed	Values Added
First Time		Mailenable Mailenable mailenable
CPE		cpe:2.3:a:mailenable:mailenable:::::enterprise_premium:::*
References	~~() https://www.mailenable.com/Premium-ReleaseNotes.txt -~~	() https://www.mailenable.com/Premium-ReleaseNotes.txt - Release Notes
References	~~() https://www.vulncheck.com/advisories/mailenable-enterprise-premium-authorization-bypass-via-webadmin -~~	() https://www.vulncheck.com/advisories/mailenable-enterprise-premium-authorization-bypass-via-webadmin - Third Party Advisory

08 May 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-08 21:16

Updated : 2026-06-01 16:44

NVD link : CVE-2026-44400

Mitre link : CVE-2026-44400

CVE.ORG link : CVE-2026-44400

JSON object : View

Products Affected

mailenable

mailenable

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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