CVE Database · CVE-2026-56290
CVSS v3.1
9.8
CVSS v4.0
10.0
EPSS
83.25%
Published
Jun 29, 2026
Modified
Jul 24, 2026
CISA Known Exploited Vulnerability
Added: 2026-07-07 · Due: 2026-07-10
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Public PoC / Exploit (5)
All weaponized →Description
Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeaknesses (CWE)
Affected Products (1)
References (4)
Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.