Vulnerabilities CVE-2026-44400

CVE-2026-44400

High

Open

TLP:CLEAR

MailEnable Enterprise Premium < 10.55 Authorization Bypass via WebAdmin

NVD CVE.org

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Description

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.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.35%

27.9th percentile
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
Confidence: 90%
Published: May 8, 2026
Last Modified: Jul 14, 2026

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