Critical severity · published Sep 30, 2026
CVE-2026-102427
Joomla Extension - ordasoft.com - Unauthenticated Remote Code Execution in OrdaSoft Joomla CCK < 8.3.16
10.0
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OJ
OrdaSoft Joomla CCK · ordasoft.com
1.0.0-8.3.15 · source: vendor
JC
Joomla Cck · Ordasoft
1.0.0 before 8.3.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102427
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102427
product
https://www.ordasoft.com/
More from OrdaSoft Joomla CCK
9.8
CVE-2026-102428
Joomla Extension - ordasoft.com - Unauthenticated SQL injection in OrdaSoft Joomla CCK < 8.3.16
