CVE-2026-48946

The K2 frontend article-attachment upload path accepts files whose extension is `.php`, and Apache's standard mod_php matches `\.php$` and executes them under the K2 web user. A K2 Author can upload a `shell.php`, then fetch `/media/k2/attachments/shell.php` and execute arbitrary PHP code in the web server's context.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://www.getk2.org/	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:joomlaworks:k2:*:*:*:*:*:joomla\!:*:*

History

25 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) La ruta de carga de adjuntos de artículos del frontend de K2 acepta archivos cuya extensión es ’.php’, y el mod_php estándar de Apache coincide con ’\.php$’ y los ejecuta bajo el usuario web de K2. Un autor de K2 puede cargar un ’shell.php’, luego recuperar /media/k2/attachments/shell.php y ejecutar código PHP arbitrario en el contexto del servidor web.

Information

Published : 2026-06-25 16:16

Updated : 2026-10-25 22:10

NVD link : CVE-2026-48946

Mitre link : CVE-2026-48946

CVE.ORG link : CVE-2026-48946

JSON object : View

Products Affected

joomlaworks

k2

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

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