CVE-2026-23620
mediumpriority · track · 0EPSS 0.002 · 12 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releasescnnvd
- https://www.vulncheck.com/advisories/gfi-mailessentials-ai-listserver-isdbexist-absolute-directory-traversal-to-file-enumerationcnnvd
- https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releasesenisa_euvd
- https://www.vulncheck.com/advisories/gfi-mailessentials-ai-listserver-isdbexist-absolute-directory-traversal-to-file-enumerationenisa_euvd
- https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releasesRelease Notesnvd
- https://www.vulncheck.com/advisories/gfi-mailessentials-ai-listserver-isdbexist-absolute-directory-traversal-to-file-enumerationThird Party Advisorynvd
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