Vulnerability · Published Jul 22, 2026 · Assigned by Joomla
CVE-2026-63048Joomla 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
Critical 9.4
In plain English
A critical-severity unrestricted file upload in Page Builder CK extension for Joomla from joomlack.fr. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Severity (CVSS 4.0)9.4Critical
Exploit odds (30 days)0.4%top 67.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| joomlack.fr | Page Builder CK extension for Joomla | 1.0.0-3.1.23.4.0-3.4.113.5.0-3.6.2 |
Weakness: CWE-434 · 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
References
- https://www.joomlack.fr/ product