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HIGHCVE-2026-44400Published Modified CNA VulnCheck

CVE-2026-44400: MailEnable Enterprise Premium < 10.55 Authorization Bypass via WebAdmin

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.

Metrics

CVSS v4.0
8.7
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • MailEnable / MailEnable Enterprise Premium
    ≤ 10.55
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N