EUVD-2026-14520
GHSA-5fjm-c352-35cv
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
5Tags
Description
MailEnable versions prior to 10.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim's browser by crafting a malicious URL. Attackers can inject malicious code through the Attendees parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.
Analysis
MailEnable versions prior to 10.55 contain a reflected cross-site scripting (XS) vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim's browser without requiring authentication or special privileges. The vulnerability exists in the FreeBusy.aspx form where the Attendees parameter is not properly sanitized before being embedded into dynamically generated JavaScript, enabling attackers to craft malicious URLs that compromise user sessions and steal sensitive data. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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