CVE-2026-23621 GFI MailEssentials AI < 22.4 ListServer.IsPathExist() Absolute Directory Traversal to File Enumeration

GFI MailEssentials AI versions prior to 22.4 contain an arbitrary directory existence enumeration vulnerability in the ListServer.IsPathExist web method exposed at /MailEssentials/pages/MailSecurity/ListServer.aspx/IsPathExist. An authenticated user can supply an unrestricted filesystem path via...

CVE-2026-23621

GFI MailEssentials AI versions prior to 22.4 contain an authentication-restricted directory existence enumeration vulnerability in ListServer.IsPathExist() (exposed at /MailEssentials/pages/MailSecurity/ListServer.aspx/IsPathExist). An authenticated user can supply an unrestricted filesystem path...

PT-2026-20910

Name of the Vulnerable Software and Affected Versions GFI MailEssentials AI versions prior to 22.4 Description The software contains an arbitrary directory existence enumeration issue in the ListServer.IsPathExist web method, accessible via the API endpoint...