Reflected XSS Vulnerability in ThemeHunk Gutenberg Blocks
CVE-2026-25438

7.1HIGH

Key Information:

Vendor

WordPress
Status
Gutenberg Blocks
Vendor
CVE Published:
19 March 2026

What is CVE-2026-25438?

The vulnerability in ThemeHunk Gutenberg Blocks arises from improper input neutralization during web page generation, resulting in a reflected cross-site scripting (XSS) flaw. This weakness potentially allows attackers to inject malicious scripts into web pages viewed by users, compromising their security and integrity. The affected versions span from n/a to 1.2.8, emphasizing the need for users to take immediate action to protect their sites.

Affected Version(s)

Gutenberg Blocks 0 <= 1.2.8

References

https://patchstack.com/database/Wordpress/Plugin/unlimite...
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

Jarno Vos (jrn5151) | Patchstack Bug Bounty Program
.