CVE-2026-23607: GFI MailEssentials AI < 22.4 Anti-Spam Whitelist Description Stored XSS
GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Anti-Spam Whitelist management interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$txtDescription parameter to /MailEssentials/pages/MailSecurity/Whitelist.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-2026-23607?
CVE-2026-23607 has been classified as a medium severity vulnerability affecting GFI MailEssentials AI versions prior to 22.4.
How do I fix CVE-2026-23607?
To fix CVE-2026-23607, upgrade GFI MailEssentials AI to version 22.4 or later.
Who is affected by CVE-2026-23607?
Authenticated users of GFI MailEssentials AI versions prior to 22.4 are affected by CVE-2026-23607 due to the stored cross-site scripting vulnerability.
What type of vulnerability is CVE-2026-23607?
CVE-2026-23607 is a stored cross-site scripting (XSS) vulnerability located in the Anti-Spam Whitelist management interface.
What can an attacker do with CVE-2026-23607?
An attacker can exploit CVE-2026-23607 to inject malicious HTML or JavaScript code into the Anti-Spam Whitelist management interface.