PT-2024-27896 · WordPress · The Essential Blocks – Page Builder Gutenberg Blocks

João Pedro Soares De Alcântara · Published 2024-04-18 · Updated 2025-01-21 · CVE-2024-3818

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress versions up to, and including, 4.5.9

Description The issue is related to Stored Cross-Site Scripting via the plugin's "Social Icons" block due to insufficient input sanitization and output escaping on user-supplied attributes. This allows 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.

Recommendations For versions up to, and including, 4.5.9, update to a version later than 4.5.9 to resolve the issue. As a temporary workaround, consider restricting access to the "Social Icons" block until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-3818

Affected Products

The Essential Blocks – Page Builder Gutenberg Blocks

References · 7

• https://osv.dev/vulnerability/CVE-2024-3818 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-3818 · Security Note
• https://plugins.trac.wordpress.org/changeset/3072932/essential-blocks/tags/4.5.10/blocks/social/src/components/depricated-social-links-1.js · Patch
• https://twitter.com/CVEnew/status/1781153883295027233 · Twitter Post
• https://t.me/cvenotify/108117 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/6b226067-0287-4f7e-9415-dc3c83f2fd27?source=cve · Note
• https://t.me/cvenotify/77385 · Telegram Post