CVE-2026-56290 - Vulnerability Details - OpenCVE

The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact total

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://mysites.guru/blog/pagebuilderck-unauthenticated-file-upload-rce/
https://www.joomlack.fr/

History

Mon, 29 Jun 2026 16:30:00 +0000

Type	Values Removed	Values Added
References		https://mysites.guru/blog/pagebuilderck-unauthenticated-file-upload-rce/
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mon, 29 Jun 2026 15:00:00 +0000

Type	Values Removed	Values Added
Description		The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Title		Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0
Weaknesses		CWE-284
References		https://www.joomlack.fr/
Metrics		cvssV4_0 `{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red'}`

MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-06-29T14:31:37.952Z

Updated: 2026-06-29T15:17:54.659Z

Reserved: 2026-06-20T11:57:32.752Z

Link: CVE-2026-56290

Vulnrichment

Updated: 2026-06-29T15:12:24.172Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-29T16:30:17Z

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