CVE-2026-39575 PUBLISHED

WordPress Custom Query Blocks plugin <= 5.5.0 - Cross Site Scripting (XSS) vulnerability

Assigner: Patchstack
Reserved: 07.04.2026 Published: 08.04.2026 Updated: 08.04.2026

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ronald Huereca Custom Query Blocks post-type-archive-mapping allows DOM-Based XSS.This issue affects Custom Query Blocks: from n/a through <= 5.5.0.

Product Status

Vendor	Ronald Huereca
Product	Custom Query Blocks
Versions	Default: unaffected affected from 0 to 5.5.0 (incl.)

Credits

Jitlada | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/Wordpress/Plugin/post-type-archive-mapping/vulnerability/wordpress-custom-query-blocks-plugin-5-5-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Problem Types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE

Impacts

DOM-Based XSS