Stored Cross-Site Scripting Vulnerability in Essential Blocks Plugin for WordPress
CVE-2024-1854

5.4MEDIUM

Key Information:

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

Summary

The Essential Blocks plugin for WordPress is exposed to a Stored Cross-Site Scripting (XSS) flaw due to inadequate input sanitization and output escaping in the blockId parameter. This vulnerability affects all versions up to and including 4.5.1 and allows authenticated attackers with contributor access or higher to inject malicious web scripts. These scripts can execute in the context of users accessing the affected pages, potentially leading to unauthorized actions or data exposure.

Affected Version(s)

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates * <= 4.5.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

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

Ngô Thiên An
Dau Hoang Tai
.