CVE-2026-23621: medium-severity vulnerability in GFI Software MailEssentials AI
GFI MailEssentials AI < 22.4 ListServer.IsPathExist() Absolute Directory Traversal to File Enumeration
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
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 the JSON key \"path\", which is URL-decoded and passed to Directory.Exists(), allowing the attacker to determine whether arbitrary directories exist on the server.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
GFI Software · MailEssentials AIRelated CVEs — GFI Software MailEssentials AI
In the same product, most dangerous first.
CVE-2026-23620MEDIUMGFI MailEssentials AI < 22.4 ListServer.IsDBExist() Absolute Directory Traversal to File EnumerationEPSS 0.2%CVE-2026-23619MEDIUMGFI MailEssentials AI < 22.4 General Settings Local Domains Domain Description Stored XSSEPSS 0.2%CVE-2026-23618MEDIUMGFI MailEssentials AI < 22.4 Anti-Spam Spam Keyword Checking Subject Condition Stored XSSEPSS 0.2%CVE-2026-23617MEDIUMGFI MailEssentials AI < 22.4 Anti-Spam Spam Keyword Checking Body Condition Stored XSSEPSS 0.2%CVE-2026-23616MEDIUMGFI MailEssentials AI < 22.4 Anti-Spam Anti-Spoofing Description Stored XSSEPSS 0.2%CVE-2026-23614MEDIUMGFI MailEssentials AI < 22.4 Anti-Spam Sender Policy Framework IP Exceptions Description Stored XSSEPSS 0.2%