CVE-2026-48946CWE-434

Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26

Medium · published June 25, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00284 · 19.8th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-06-25T15:25Z
EPSS history
Timeline
  • 25 JUN 15:25Z
    Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
    cvelistv5