Gutentor - Gutenberg Blocks CVE-2026-2951

EUVD-2026-25168 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-04-23 Wordfence

GHSA-vrq9-2rh7-jjg5

WordPress XSS

5.4

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 23, 2026 - 07:07 vuln.today

DescriptionNVD

The Gutentor - Gutenberg Blocks - Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 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.

AnalysisAI

Stored Cross-Site Scripting in Gutentor plugin for WordPress up to version 3.5.5 allows authenticated contributors and above to inject malicious scripts into pages via insufficient input sanitization, executing arbitrary JavaScript in the browsers of users who view the compromised pages. The vulnerability requires contributor-level WordPress account access and user interaction (page view), resulting in limited but real risk to website content integrity and user session compromise.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-2951 vulnerability details – vuln.today

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