CVE-2026-23618

Description

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Spam Keyword Checking (Subject) conditions interface. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pvSubject$TXB_SubjectCondition parameter to /MailEssentials/pages/MailSecurity/ASKeywordChecking.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases ↗
• https://www.vulncheck.com/advisories/gfi-mailessentials-ai-anti-spam-spam-keyword-checking-subject-condition-stored-xss ↗