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High 8.1Published May 8, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects MailEnable Enterprise Premium and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-639
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Analyzed
Record last updated
Jul 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
MailEnable MailEnable Enterprise Premium
mailenable:enterprise_premium (from the name)
through 10.55
CNA record
mailenable mailenable
mailenable:mailenable
before 10.56
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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