What is CVE-2026-2951?

CVE-2026-2951 is a medium-severity vulnerability in Gutentor – Gutenberg Blocks Page Builder For Editor, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-23.

How severe is CVE-2026-2951?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Gutentor – Gutenberg Blocks Page Builder For Editor

CVE-2026-2951

The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 due to insufficient input sanitization and output escaping. This…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Gutentor – Gutenberg Blocks Page Builder For Editor — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-2951?: CVE-2026-2951 is a medium-severity vulnerability in Gutentor – Gutenberg Blocks Page Builder For Editor, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-23.
How severe is CVE-2026-2951?: Medium severity. CVSS v3 base score is 5.4 out of 10.