CVE-2026-10833 — Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns [essential-blocks] < 6.2.0

CVE	Vulnerability	Type	Severity	Affected	Fixed in	Published	Status
CVE-2026-10833	Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns [essential-blocks] < 6.2.0	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	Medium 6.4	< 6.2.0	6.2.0	2026-06-24	—

CVE-2026-10833

The Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'configurablePrefix' Block Attribute in all versions up to, and including, 6.1.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Source: CVE.org

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