CVE-2026-48946

MediumCVSS 6.3/10Last modified Jun 28, 2026

Description

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.

Metrics

CVSS 3.1 6.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-434

Affected software

No affected versions have been published.

Timeline

Published: Jun 25, 2026
Last modified: Jun 28, 2026
NVD status: Analyzed

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