CVE-2026-10833

MEDIUM

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

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-10833 has a selected CVSS score of 6.4 (medium).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jun 25, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

Browse wpdevteam / Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

Default status: unaffected

CVE ListThrough 6.1.4affected

References

4