Data input into EMS Master Calendar before 8.0.0.201805210 via URL parameters is not properly sanitized, allowing malicious attackers to send a crafted URL for XSS.
https://gist.github.com/barrett092/c70752ca6960b8b9616a03006f291a28
http://www.securityfocus.com/bid/104428
https://www.exploit-db.com/exploits/44831/
https://docs.emssoftware.com/Content/V44.1_ReleaseNotes.htm
Source: Mitre, NVD
Published: 2018-06-01
Updated: 2026-06-17
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.02698