CVE-2025-11270 - CVE House

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Status published Medium CVE-2025-11270

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns <= 5.7.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

6.4 CVSS

Vulnerability Description

The Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'titleTag' attribute in all versions up to, and including, 5.7.1 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Rafshanzani Suhada

References

More from wpdevteam

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Essential Addons for Elementor – Popular Elementor Templates and Widgets <= 6.2.2 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via 'data-gallery-items'

BetterDocs <= 4.1.1 - Missing Authorization to Private And Password-Protected Posts Information Disclosure

Essential Addons for Elementor – Popular Elementor Templates and Widgets <= 6.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via `Calendar` And `Business Reviews` Widgets

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Slider and Post Carousel Widgets

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

Affected Vendor

wpdevteam

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Affected Software

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns

Vulnerable Versions:

0

Timeline

Official Publish: October 18th, 2025

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement