CVE-2026-44400
MailEnable Enterprise Premium < 10.55 Authorization Bypass via WebAdmin
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | mailenable |
| Product | mailenable enterprise premium |
| Published | May 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MailEnable / MailEnable Enterprise Premium
0 < 10.55
References
Credits
dninh of SACOMBANK