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CVE-2026-102427

CRITICAL
10.0NVD

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.

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CVSS v3.1 Score

10.0
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Information

Published
30 sept. 2026
Updated
1 oct. 2026
Status
Analyzed
Source
security@joomla.org

Affected products

ordasoft joomla cck
Versions : 8.3.16

Weaknesses (CWE)

CWE-434

References (1)

Similar CVEs

Other vulnerabilities of type CWE-434

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