Stored Cross-Site Scripting Vulnerability in Page Builder Gutenberg Blocks
CVE-2024-4891

5.4MEDIUM

Key Information:

Vendor

Wordpress
Status
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates
Vendor
CVE Published:
18 May 2024

What is CVE-2024-4891?

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘tagName’ parameter in versions up to, and including, 4.5.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Affected Version(s)

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates * <= 4.5.12

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/essential-bloc...
https://plugins.trac.wordpress.org/changeset/3087677/

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

João Pedro Soares de Alcântara
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