The Identity Provider (IdP) server in Ipsilon 0.1.0 before 1.0.1 does not properly escape certain characters in a Python exception-message template, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via an HTTP response.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)