CVE-2026-63048: Joomlack.fr Page Builder Ck Extension For Joomla

Critical severity, CVSS 9.4. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Joomlack.fr Page Builder Ck Extension For Joomla: version 1.0.0-3.1.2 only; version 3.4.0-3.4.11 only; version 3.5.0-3.6.2 only

Published 2026-07-22. Last modified 2026-08-26.