CVE-2026-48940CWE-79

Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26

Low · published June 25, 2026

CVSS v3.1
3.4
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose `embedVideo` POST field contains a raw `<script>` tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.

The record
Technical detail
CVSS v3.1
3.4 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00284 · 19.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-25T15:26Z
EPSS history
Timeline
  • 25 JUN 15:26Z
    Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
    cvelistv5