Medium (4.8) in misp-project misp. EPSS 0.5% chance of exploitation in the next 30 days.
An issue was discovered in MISP before 2.4.156. A malicious site administrator could store an XSS payload in the custom auth name. This would be executed each time the administrator modifies a user.
Severity
CVSS 3.1
4.8 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS
0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)