What is CVE-2026-3002?

CVE-2026-3002 is a medium-severity vulnerability in Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-08-26.

How severe is CVE-2026-3002?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor

CVE-2026-3002

The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the multiple blocks in all versions up to, and including, 4.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Jegstudio Gutenverse – Wordpress Blocks, Page Builder & Site Editor

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-3002?: CVE-2026-3002 is a medium-severity vulnerability in Jegstudio Gutenverse – WordPress Blocks, Page Builder & Site Editor, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-08-26.
How severe is CVE-2026-3002?: Medium severity. CVSS v3 base score is 6.4 out of 10.