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10.0

CVE-2026-102427: OrdaSoft Joomla CCK lets attackers run code

CVE-2026-102427 · published 18 days ago
Summary

The OrdaSoft Joomla CCK extension (versions before 8.3.16) lets anyone upload a specially crafted file that the site will execute as code. Because the upload function does not require login or check the file type properly, an attacker can place malicious code on the server and take control. Update the extension to the latest version or remove it if not needed, and ensure only trusted users can upload files.

What to do
  • Update ordasoft joomla_cck to version 8.3.16 or later.
Affected software
VendorProductAffected versions
ordasoft.com ordasoft joomla cck 1.0.0-8.3.15
ordasoft joomla_cck >= 1.0.0, < 8.3.16
cpe:2.3:a:ordasoft:joomla_cck:*:*:*:*:*:joomla\!:*:*
Original advisory text
Joomla Extension - ordasoft.com - Unauthenticated Remote Code Execution in OrdaSoft Joomla CCK < 8.3.16
Joomla Extension - ordasoft.com - Unauthenticated Remote Code Execution in OrdaSoft Joomla CCK < 8.3.16 - site/uploader.php is reached through the component’s normal frontend routing (task=getContent), a task with no authentication or ACL check anywhere in the dispatch chain. The handler validates the uploaded file’s content with a real magic-byte MIME check, but the extension allow-list that would otherwise restrict the saved file’s extension was present in the source and commented out. The saved file’s extension was taken directly from the attacker-supplied filename with no validation, and the file was written to a path directly under the Joomla web root that is executed by the PHP handler. An image/PHP polyglot, a file whose header bytes satisfy the MIME check with PHP source appended after, passed the content check while carrying a .php extension of the attacker’s choosing.
References
Severity
10.0 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-434Unrestricted File Upload
Timeline
Published30 Sep 2026
Updated15 Oct 2026
First seen30 Sep 2026
Sources
CVE-2026-102427 · MITRE
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