MinorCritical vulnerability
CVE-2026-121863 (CVSS 7.1)
NVD · officialPublished Nov 11, 2026Risk 23/100
The Knowledge Building WordPress plugin before 0.7.3 does not escape several user-supplied values before echoing them back in the response of an AJAX action available to unauthenticated users, and serves that response as HTML, leading to a Reflected Cross-Site Scripting.
Technical details
CVSS
7.1
AV:NetworkAC:LowPR:NoneUI:RequiredC:LowI:LowA:Low
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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