Cross-site Scripting Vulnerability in Custom Query Blocks by Ronald Huereca
CVE-2026-39575

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Custom Query Blocks
Vendor
CVE Published:
8 April 2026

What is CVE-2026-39575?

The vulnerability within Custom Query Blocks by Ronald Huereca is characterized by improper neutralization of user inputs during web page generation, resulting in a DOM-Based XSS issue. This flaw allows attackers to execute scripts in the context of the user's browser. Affected versions range from n/a up to 5.5.0, making it crucial for users and developers to implement corrective measures to safeguard against potential exploitation.

Affected Version(s)

Custom Query Blocks 0 <= 5.5.0

References

https://patchstack.com/database/Wordpress/Plugin/post-typ...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jitlada | Patchstack Bug Bounty Program
.