CVE-2026-23616: GFI MailEssentials AI < 22.4 Anti-Spam Anti-Spoofing Description Stored XSS
GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Anti-Spoofing configuration page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$AntiSpoofingGeneral1$TxtSmtpDesc parameter to /MailEssentials/pages/MailSecurity/AntiSpoofing.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23616?
CVE-2026-23616 is classified as a medium severity stored cross-site scripting vulnerability.
How do I fix CVE-2026-23616?
To fix CVE-2026-23616, upgrade GFI MailEssentials AI to version 22.4 or later.
Who is affected by CVE-2026-23616?
CVE-2026-23616 affects all versions of GFI MailEssentials AI prior to 22.4.
What kind of vulnerability is CVE-2026-23616?
CVE-2026-23616 is a stored cross-site scripting vulnerability in the Anti-Spoofing configuration page.
Can an unauthenticated user exploit CVE-2026-23616?
No, CVE-2026-23616 requires authentication to exploit the vulnerability.