CVE-2026-56290 CISA KEV · Actively exploitedSuited to automated attack · CISA

Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0

CVSS score

10.0

EPSS probability

%30.9

Risk score

6.2

Published

3 mo ago

Vulnerability Timeline (Change History)

CVE-2026-56290 historical changes made to the vulnerability by NVD, CISA and MITRE:

Date	Actor / Source	Action / Description	Type	Previous value	New value
08.10.2026	nvd@nist.gov	Initial Analysis & CVSS Vector Assignment	CVSS V3.1	—	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
07.07.2026	CISA Coordinator	Added to KEV Catalog (Active Exploitation)	SSVC / KEV	exploitation: none	exploitation: active
29.06.2026	MITRE / NVD	New CVE Record Received & Ingested	CVE Created	—	CVE-2026-56290

9.3

Patch status unknownEPSS %01 mo ago

9.3

Patch status unknownEPSS %02 mo ago

9.4

Patch status unknownEPSS %02 mo ago

5.3

Patch status unknownEPSS %01 mo ago

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-56290"