The Page Builder KingComposer WordPress plugin through 2.9.6 does not validate the id parameter before redirecting the user to it via the kc_get_thumbn AJAX action available to both unauthenticated and authenticated users
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
4.3% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)