MailEnable < 10.55 Reflected XSS via ManageShares.aspx SelectedIndex Parameter
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.1epss 0.3%
exploitation probability
0.3%top 76% of all CVEs
observed exploitation
nono source reports it
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 SelectedIndex parameter in the ManageShares.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.
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
Affected products
MailEnable · MailEnableReferences
https://karmainsecurity.com/KIS-2026-05https://mailenable.com/Standard-ReleaseNotes.txthttps://www.mailenable.com/https://www.mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABLEVERSION1055https://www.vulncheck.com/advisories/mailenable-reflected-xss-via-manageshares-aspx-selectedindex-parameter