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CVE-2026-56290

CRITICAL
10.0
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-56290
State
PUBLISHED
Assigner
Joomla
Reserved
2026-06-20 11:57 UTC
Published
2026-06-29 14:31 UTC
Last updated
2026-06-29 15:17 UTC
Primary CWE
CWE-284
CWE-284 Improper Access Control
Vendor / Product
joomlack.fr / JoomlaCK.fr Page Builder CK extension for Joomla
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 4.0
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
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
joomlack.fr JoomlaCK.fr Page Builder CK extension for Joomla — 1.0-3.6.0
Weakness (CWE)
CWESourceDescription
CWE-284 cna CWE-284 Improper Access Control
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 4.0 cna 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
References (1)
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