Medium (5.4) in k5n webcalendar. EPSS 0.3% chance of exploitation in the next 30 days.
A stored cross-site scripting (XSS) vulnerability exists in craigk5n/webcalendar version 1.3.0. The vulnerability occurs in the 'Report Name' input field while creating a new report. An attacker can inject malicious scripts, which are then executed in the context of other users who view the report, potentially leading to the theft of user accounts and cookies.
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
0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)