CVE-2026-23611 — Cross-site Scripting in Software Mailessentials AI

CWE-79 — Cross-site Scripting3 documents3 sources
Severity
5.1MEDIUMNVD
EPSS
0.0%
top 88.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
GFI Software Mailessentials AIGFI Mailessentials
Timeline
PublishedFeb 19

Description

GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the IP Blocklist management page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv1$txtIPDescription parameter to /MailEssentials/pages/MailSecurity/ipblocklist.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Affected Packages2 packages

▶NVDgfi/mailessentials< 22.4

🔴Vulnerability Details

2
CVEList
GFI MailEssentials AI < 22.4 Anti-Spam IP Blocklist Description Stored XSS↗2026-02-19
▶
GHSA
GHSA-6f86-pp6p-mrph: GFI MailEssentials AI versions prior to 22↗2026-02-19
▶
CVE-2026-23611 — Cross-site Scripting | cvebase