The Joomla extension Page Builder CK is vulnerable to an authenticated arbitrary file upload, leading to RCE.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

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.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
joomlack.fr Page Builder CK extension for Joomla unaffected
Version Status Constraints
1.0.0-3.6.2 affected —

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.joomlack.fr/ cve-icon
History

Wed, 22 Jul 2026 07:30:00 +0000

Type Values Removed Values Added
Description The Joomla extension Page Builder CK is vulnerable to an authenticated arbitrary file upload, leading to RCE.
Title Joomla Extension - joomlack.fr - Improper access control in Page Builder CK < 3.6.2
Weaknesses CWE-434
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Joomla

Published:

Updated: 2026-07-22T07:15:25.988Z

Reserved: 2026-07-15T08:12:23.736Z

Link: CVE-2026-63048

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses