Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE

Nexa Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE has 5 disclosed vulnerabilities in the WordSec catalog, reported between 2025 and 2026; 1 is fixed and 4 remain unpatched as of September 2026. Their average CVSS score is 6.5, and the most serious one scores 8.1 out of 10. Severity breakdown: 0 critical and 1 high. 2025 was the busiest year with 3 disclosures.

The most common weakness is Cross-Site Scripting, behind 2 of the records (40%). Other recurring categories include Server-Side Request Forgery (SSRF), Deserialization Of Untrusted Data.

1 of the records (20%) have a vendor fix, while 4 remain unpatched. The oldest unresolved one dates back to 2025.

5 independent researchers contributed these findings, one record each.