CVE-2026-48945CWE-434

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

Medium · published June 25, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
24.9
In the wild
Unconfirmed
What it is

The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, and only renames image files (gif/jpg/jpeg/png/webp) to safe names — non-image files (including `.php`) are extracted as-is and remain executable via direct HTTP access.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00330 · 24.9th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-06-25T15:26Z
EPSS history
Timeline
  • 25 JUN 15:26Z
    Joomla Extension - getk2.org - Privileged RCE vulnerability in K2 extension for Joomla < 2.26
    cvelistv5