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CVE Vulnerability Details :
CVE-2026-23621
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-19 Feb, 2026 | 18:01
Updated At-19 Feb, 2026 | 19:25
Rejected At-
▼CVE Numbering Authority (CNA)
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 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.

Affected Products
Vendor
GFI Software
Product
MailEssentials AI
Default Status
unaffected
Versions
Affected
  • From 0 before 22.4 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-203CWE-203 Observable Discrepancy
Type: CWE
CWE ID: CWE-203
Description: CWE-203 Observable Discrepancy
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
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
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
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
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Alex Williams from Pellera Technologies
coordinator
VulnCheck
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases
release-notes
patch
https://www.vulncheck.com/advisories/gfi-mailessentials-ai-listserver-ispathexist-absolute-directory-traversal-to-file-enumeration
third-party-advisory
Hyperlink: https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases
Resource:
release-notes
patch
Hyperlink: https://www.vulncheck.com/advisories/gfi-mailessentials-ai-listserver-ispathexist-absolute-directory-traversal-to-file-enumeration
Resource:
third-party-advisory
Details not found