CVE-2026-23610: GFI MailEssentials AI < 22.4 POP2Exchange POP3 Server Login Stored XSS
GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the POP2Exchange configuration endpoint. An authenticated user can supply HTML/JavaScript in the POP3 server login field within the JSON \"popServers\" payload to /MailEssentials/pages/MailSecurity/POP2Exchange.aspx/Save, 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-2026-23610?
The severity of CVE-2026-23610 is categorized as high due to its potential for exploitation through stored cross-site scripting.
How do I fix CVE-2026-23610?
To fix CVE-2026-23610, upgrade GFI MailEssentials AI to version 22.4 or later.
Who is affected by CVE-2026-23610?
CVE-2026-23610 affects users of GFI MailEssentials AI versions prior to 22.4.
What type of vulnerability is CVE-2026-23610?
CVE-2026-23610 is a stored cross-site scripting vulnerability.
What can an attacker do with CVE-2026-23610?
An attacker can use CVE-2026-23610 to inject HTML or JavaScript via the POP3 server login field, leading to potential data theft or session hijacking.