PT-2026-20895 · Gfi · Gfi Mailessentials

Alex Williams + 1 · Published 2026-02-19 · Updated 2026-02-23 · CVE-2026-23615

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions GFI MailEssentials AI versions prior to 22.4

Description GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting issue in the Sender Policy Framework Email Exceptions interface. An authenticated user can inject HTML or JavaScript code into the ctl00$ContentPlaceHolder1$pv4$txtEmailDescription parameter of the /MailEssentials/pages/MailSecurity/SenderPolicyFramework.aspx API endpoint. This injected code is then stored and displayed within the management interface, enabling script execution within the context of a logged-in user.

Recommendations Versions prior to 22.4 should be updated.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-23615

Affected Products

Gfi Mailessentials

References · 6

• https://osv.dev/vulnerability/CVE-2026-23615 · Vendor Advisory
• https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23615 · Security Note
• https://vulncheck.com/advisories/gfi-mailessentials-ai-anti-spam-sender-policy-framework-email-exceptions-description-stored-xss · Note
• https://t.me/CVEtracker/45157 · Telegram Post
• https://twitter.com/CVEnew/status/2025809112710459700 · Twitter Post