---
id: CVE-2026-48941
title: >-
  The K2 frontend `item.checkin` task accepts an unauthenticated `sigProFolder`
  query parameter and uses it directly to address a `JFolder::delete()` call
  under `/media/k2/galleries/`
summary: >-
  The K2 frontend `item.checkin` task accepts an unauthenticated `sigProFolder`
  query parameter and uses it directly to address a `JFolder::delete()` call
  under `/media/k2/galleries/`
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-862
published: '2026-06-25'
updated: '2026-06-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48941'
references:
  - url: 'https://www.getk2.org/'
    label: security@joomla.org
tags:
  - nvd
epss: 0.00266
epssPercentile: 0.18809
ingestedAt: '2026-06-29T13:42:12.007Z'
---

## Overview

The K2 frontend `item.checkin` task accepts an unauthenticated `sigProFolder` query parameter and uses it directly to address a `JFolder::delete()` call under `/media/k2/galleries/`

## Remediation

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