---
id: CVE-2026-48940
title: >-
  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.
summary: >-
  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.
severity: low
cvss: 3.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N'
cwe:
  - CWE-79
published: '2026-06-25'
updated: '2026-06-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48940'
references:
  - url: 'https://www.getk2.org/'
    label: security@joomla.org
tags:
  - nvd
epss: 0.00284
epssPercentile: 0.21187
ingestedAt: '2026-06-29T13:42:12.006Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.