CVE-2026-56290

Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.joomlack.fr/	Product
https://forum.joomlack.fr/index.php/page-builder-ck/21627-nouvelle-version-de-pbck-et-joomla-3	Issue Tracking Patch
https://mysites.guru/blog/pagebuilderck-unauthenticated-file-upload-rce/	Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56290	US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:joomlack:page_builder_ck:*:*:*:*:*:joomla\!:*:*

History

25 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) La extensión de Joomla Page Builder CK es vulnerable a una carga de archivos arbitraria no autenticada que permite la carga de archivos ejecutables y conduce a una RCE completa.

Information

Published : 2026-06-29 15:16

Updated : 2026-10-25 21:10

NVD link : CVE-2026-56290

Mitre link : CVE-2026-56290

CVE.ORG link : CVE-2026-56290

JSON object : View

Products Affected

joomlack

page_builder_ck

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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