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 StartDate parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Mailenable Mailenable
cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:*
|
— |
10.55
|
References 5
https://karmainsecurity.com/KIS-2026-05
disclosure@vulncheck.com
https://mailenable.com/Standard-ReleaseNotes.txt
disclosure@vulncheck.com
https://www.mailenable.com/
disclosure@vulncheck.com
https://www.mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABLEVERSION…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/mailenable-reflected-xss-via-freebusy-aspx…
disclosure@vulncheck.com