Threat intelligence

Gutenberg Essential Blocks - Page Builder for Gutenberg Blocks & Patterns <= 6.1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'configurablePrefix' Block Attribute

CVE-2026-10833 · essential-blocks

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Essential Blocks at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Gutenberg Essential Blocks - Page Builder for Gutenberg Blocks & Patterns <= 6.1.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'configurablePrefix' Block Attribute
Affected software: essential-blocks(Plugin)
Affected versions: ≤ 6.1.4
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-10833
Published: 24 June 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory 0efe8bbd-c1c9-48ed-adab-34c0ac3da8bf). Methodology and redistribution notes

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