Medium (5.4) in hundredplus 101eip. EPSS 0.6% chance of exploitation in the next 30 days.
Add event in calendar function in the 101EIP system does not filter special characters in specific fields, which allows remote authenticated users to inject JavaScript and perform a stored XSS attack.
Severity
CVSS 3.1
5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)