CVE-2026-32852
MailEnable < 10.55 Reflected XSS via FreeBusy.aspx StartDate Parameter
MEDIUM 5.1EPSS 0.5%
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.
- Affected
- MailEnable
- CVSS v4.0 VULNCHECK
- 5.1 MEDIUM
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 - CVSS v3.1 NVD
- 6.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS
- 0.46% chance of exploitation in the next 30 days, 38th percentile
- Published
- 2026-03-23
- Updated
- 2026-07-14
Proof-of-concept exploits (1)
Security advisories
- https://www.vulncheck.com/advisories/mailenable-reflected-xss-via-freebusy-aspx-startdate…
- https://mailenable.com/Standard-ReleaseNotes.txt
- https://www.mailenable.com/rss/article.asp?Source=RSSADMIN&ID=MAILENABLEVERSION1055
- https://www.mailenable.com