TI-2024-01726 Aliases CVE-2024-1854 GHSA-6rc2-8j39-34cx

Improper input validation in wpdevteam Gutenberg Essential Blocks – Page Builder for…

LOW 29CWE-20Published 2024-03-13 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the blockId parameter in all versions up to, and including, 4.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00423 36th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
wpdevteam	Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns	up to 4.5.1	—	No fix listed	CNA

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns Vendorwpdevteam Affected up to 4.5.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wpdeveloper:essential_blocks:::::free:wordpress::	before 4.5.2	Vulnerable	wpdevteam

cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:free:wordpress:*:* Versions before 4.5.2 Vulnerable ·wpdevteam

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-1854
2026-10-03 Alias added: GHSA-6rc2-8j39-34cx

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/86364b6f-dec8-48d8-9d2d-de1ee4901872?source=cve

Other 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3041859%40essential-blocks%2Ftrunk&old=3036273%40essential-blocks%2Ftrunk&sfp_email=&sfph_mail=

TI-2023-06070 Essential Blocks < 4.4.3 - Unauthenticated Local File Inclusion CVSS 3.1CRITICAL 9.8
TI-2024-05197 Essential Blocks < 4.7.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
TI-2023-04066 Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via products CVSS 3.1CRITICAL 9.8
TI-2023-28018 WordPress Essential Blocks plugin <= 4.2.0 - Multiple Subscriber+ Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2023-28017 WordPress Essential Blocks plugin <= 4.2.0 - Multiple Contributor+ Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2023-04052 Essential Blocks <= 4.2.0 - Unauthenticated PHP Object Injection via queries CVSS 3.1HIGH 8.1

See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences