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CVE-2024-3818

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.5.9 - Authenticated (Contributor+) DOM-Based Cross-Site Scripting via "Social Icons" Block

MEDIUM
5.4
CVSS Score
Published: April 19, 2024 at 02:34 AM UTC
Updated: June 17, 2026 at 07:45 AM UTC
2 products affected across 2 vendorsEssential BlocksEssential Blocks

Using Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates by wpdevteam?

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's "Social Icons" block in all versions up to, and including, 4.5.9 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Essential Blocks· Wpdeveloperwordpress-plugin
95%
v < 4.5.10
Affected range stops below 4.5.10, so it looks safe — our inference, not a vendor statement
Essential Blocks· Wpdevteamwordpress-plugin
60%
v ≤ 4.5.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: [email protected]
https://plugins.trac.wordpress.org/changeset/3072932/essential-blocks/tags/4.5.10/blocks/social/src/components/depricated-social-links-1.js
Third Party Advisory
Source: [email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/6b226067-0287-4f7e-9415-dc3c83f2fd27?source=cve

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMWordfence
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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