CVE-2026-63048
CriticalCVSS 9.4Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
Joomla extension Page Builder CK versions 1.0.0-3.1.2, 3.4.0-3.4.11, and 3.5.0-3.6.2 have improper access control, allowing an authenticated arbitrary file upload leading to RCE.
Risk Assessment
An authenticated attacker can upload malicious files and execute code on the server, potentially leading to site takeover and data breach.
Recommendation
Update Page Builder CK to a patched version and restrict user permissions.
Other vulnerabilities in Page Builder CK
See all- CVE-2026-77994Critical
Joomla Extension - joomlack.fr - Second order SQL injection in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a SQL injection issue related to the loadStyles method of the frontend page model.
- CVE-2026-74254Critical
Joomla Extension - joomlack.fr - SQL injection in Page Builder CK < 3.6.5 - The Joomla extension Page Builder CK is vulnerable to a SQL injection issue related to the styles model. Version 3.6.4 fixed the vector in the frontend, 3.6.5 in the backend.
- CVE-2026-62414Critical
The Joomla extension Page Builder CK below version 3.6.2 does not properly apply access control to frontend page list views. An authenticated user can gain unauthorized access to page lists.
- CVE-2026-56290CriticalActively exploited
The Page Builder CK extension for Joomla versions below 3.6.0 contains a vulnerability allowing an unauthenticated attacker to upload arbitrary files, including executable files. This leads to full remote code execution (RCE).
- CVE-2026-77993Medium
The Joomla extension Page Builder CK before version 3.6.5 is vulnerable to a reflected XSS attack via the iscontenttype parameter. The attack can be executed remotely.
Original NVD description (English source)
Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2 - The Joomla extension Page Builder CK is vulnerable to an authenticated arbitrary file upload, leading to RCE.