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CVE-2026-56290

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

Published
Last modified
published
Listed in CISA KEV
1 on Exploit-DB
  • Exploitation: active
  • Automatable: yes
  • Technical impact: total

Summary

The Page Builder CK extension for Joomla, a website builder add-on, is affected by this flaw. It allows anyone without logging in to upload executable files, which could let an attacker run arbitrary commands and take full control of the affected website server.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA SSVC assessment

    Exploitation: active · Automatable: yes · Technical impact: total

  4. Public exploit on Exploit-DB

    EDB-52626

  5. CISA remediation deadline

    Due date for US federal agencies to patch

  6. Record last updated
  7. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • joomlack.fr JoomlaCK.fr Page Builder CK extension for Joomla

    1.0-3.6.0

References 2

joomlack.fr

Exploit-DB