Unrated severityNVD Advisory· Published Feb 19, 2026· Updated Mar 2, 2026
GFI MailEssentials AI < 22.4 ListServer.IsDbExist() Absolute Directory Traversal to File Enumeration
CVE-2026-23620
Description
GFI MailEssentials AI versions prior to 22.4 contain an arbitrary file existence enumeration vulnerability in the ListServer.IsDBExist() web method exposed at /MailEssentials/pages/MailSecurity/ListServer.aspx/IsDBExist. An authenticated user can supply an unrestricted filesystem path via the JSON key \"path\", which is URL-decoded and passed to File.Exists(), allowing the attacker to determine whether arbitrary files exist on the server.
Affected products
2- Range: <22.4
- GFI Software/MailEssentials AIv5Range: 0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2News mentions
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