Cross-site scripting (XSS) vulnerability in SimpBook 1.0, with html_enable on (the default), allows remote attackers to inject arbitrary web script or HTML via the message field.
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
0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)