Cross-site Scripting Vulnerability in Liquid Web's Gutenberg Blocks by Kadence Blocks
CVE-2026-103354

7.1HIGH

Key Information:

Vendor

WordPress
Status
Gutenberg Blocks By Kadence Blocks
Vendor
CVE Published:
4 October 2026

What is CVE-2026-103354?

The Gutenberg Blocks by Kadence Blocks, a product of Liquid Web, is susceptible to a Cross-site Scripting (XSS) vulnerability due to improper neutralization of user inputs during web page generation. This flaw can lead to the execution of malicious scripts in the context of users' browsers, posing a significant security risk for users of versions up to and including 3.7.11.1. Attackers could exploit this vulnerability to store malicious payloads, which, upon triggered by unsuspecting users, could compromise their data and web integrity.

Affected Version(s)

Gutenberg Blocks by Kadence Blocks 0 <= 3.7.11.1

References

https://patchstack.com/database/wordpress/plugin/kadence-...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

vta.itsec | Patchstack Bug Bounty Program
.