Description
GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Advanced Content Filtering rule creation workflow. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$txtRuleName parameter to /MailEssentials/pages/MailSecurity/advancedfiltering.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.
References (2)
Core 2
Core References
Various Sources release-notes
patch
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/gfi-mailessentials-ai-advanced-content-filtering-rule-stored-xss
Scores
CVSS v3
5.4
EPSS
0.0017
EPSS Percentile
7.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
gfi/mailessentials
< 22.4
GFI Software/MailEssentials AI
< 22.4
Published
Feb 19, 2026
Tracked Since
Feb 19, 2026