CVE-2026-56290

Improper Access Control in Joomlack Page Builder. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 7 July 2026.

Product
Joomlack Page Builder
Added to CISA's catalog
Federal fix-by date
Ransomware
No known use in ransomware campaigns

CISA’s description.

Joomlack Page Builder contains an improper access control vulnerability that could allow for remote code execution via unauthenticated arbitrary file upload.

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.