---
id: CVE-2026-15518
title: A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0
summary: >-
  A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0. The impacted
  element is the function FileLibraryController::storeFile of the file
  src/Http/Controllers/Admin/FileLibraryController.php of the component Media
  Library Insert…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-284
  - CWE-434
published: '2026-07-13'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15518'
references:
  - url: >-
      https://bytium.com/insights/authenticated-arbitrary-file-upload-to-rce-in-twill-cms
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15518'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/849572'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377847'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377847/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-13T01:23:11.070Z'
epss: 0.00376
epssPercentile: 0.31543
---

## Overview

A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0. The impacted element is the function FileLibraryController::storeFile of the file src/Http/Controllers/Admin/FileLibraryController.php of the component Media Library Insert Page. Such manipulation of the argument qqfilename leads to unrestricted upload. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## Remediation

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