CVE-2026-121862
HIGH
NVD
CVSS Score
8.8
Severity
HIGH
Published
Nov 11, 2026
Vendor
unknown
Description
The Knowledge Building WordPress plugin before 0.7.3 does not sanitise and escape comments submitted through its reply feature, and publishes them without moderation, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against any visitor of the affected posts, including administrators.