Medium · 6.5 CVE-2025-49929 EUVD-2025-35529GHSA-f2w4-4hph-qvfj

WordPress Ultimate Blocks plugin <= 3.3.6 - Cross Site Scripting (XSS) vulnerability

Published Oct 22, 2025 · Updated Apr 28, 2026 · Assigned by Patchstack

Vendor: Ultimate Blocks Product: Ultimate Blocks

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ultimate Blocks Ultimate Blocks ultimate-blocks allows Stored XSS.This issue affects Ultimate Blocks: from n/a through <= 3.3.6.

Affected products

Vendor	Product	Affected	Fixed
Ultimate Blocks	Ultimate Blocks	≤ 3.3.6	—

References

https://patchstack.com/database/Wordpress/Plugin/ultimate-blocks/vulnerability/wordpress-ultimate-blocks-plugin-3-3-6-cross-site-scripting-xss-vulnerability?_s_id=cve vdb-entry