CVE-2024-4891

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.5.12 - Authenticated (Contributor+) Stored Cross-Site Scripting

Severity Score

6.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

El complemento Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates para WordPress es vulnerable a cross site scripting almacenado a través del parámetro 'tagName' en versiones hasta la 4.5.12 incluida debido a una sanitización de entrada y un escape de salida insuficientes. Esto hace posible que atacantes autenticados, con permisos de nivel de colaborador y superiores, inyecten scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada.

*Credits: João Pedro Soares de Alcântara

CVSS Scores

Wordfencev3.1 6.4

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-15 CVE Reserved
2024-05-16 CVE Published
2024-05-18 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (3)

URL	Tag	Source
https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/AdvancedHeading.php#L115
https://plugins.trac.wordpress.org/changeset/3087677
https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bcebb3-920b-40cc-aa5c-24a1f729b28d?source=cve

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wpdevteam Search vendor "Wpdevteam"		Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates Search vendor "Wpdevteam" for product "Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates"				<= 4.5.12 Search vendor "Wpdevteam" for product "Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates" and version " <= 4.5.12"		en		Affected