What’s Vulnerable › Products

Custom Block Builder vulnerabilities

1 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 1 published in the last 12 months.

Check whether your Custom Block Builder version is affected

Latest Custom Block Builder vulnerabilities

• CVE-2026-8981 — Lazy Blocks < 4.3.0 - Admin+ Stored XSS via Custom Block Frontend HTML (CVSS 3.5)