CVE-2026-103354 HIGH

CVE-2026-103354: WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.11.1 - Cross Site Scripting (XSS) vulnerability

Vendor Liquid Web / Stellarwp
Product Gutenberg Blocks by Kadence Blocks
Weakness CWE-79 · XSS
Published October 4, 2026
Last update October 4, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks kadence-blocks allows Stored XSS.This issue affects Gutenberg Blocks by Kadence Blocks: from n/a through 3.7.11.1.

Key dates

02Disclosure timeline

October 4, 2026 CVE published

Related vulnerabilities

04Related CVE