Risk Letters

Exploited vulnerability

CVE-2026-56290

TLP:CLEAR

Joomlack Page Builder Improper Access Control Vulnerability

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

Facts

  • Vendor: Joomlack
  • Product: Page Builder
  • CVSS: 10
  • EPSS (probability of exploitation within 30 days): 30.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 7 July 2026
  • First known exploitation: 7 July 2026
  • CISA's deadline for US federal agencies: 10 July 2026
  • Weakness: CWE-284
  • First seen by Risk Letters: 7 July 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD