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CVE-2026-102427.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSCRITICAL / 10CVSS 4.0 · security@joomla.org
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSAnalyzedModified Oct 01, 2026

Disclosure summary

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.

Source-reported weakness categories

CWE-434

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2026-102427

Open original source · Updated Oct 01, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

VendorProduct / associationVersion / bounds
ordasoftjoomla_cck* {"versionStartIncluding":"1.0.0","versionEndExcluding":"8.3.16"}

Original records & references

PUBLISHED 2026-09-30T12:17:06-04:00
MODIFIED 2026-10-01T09:46:23-04:00
INGESTED 2026-10-06T11:44:58-04:00