Unrestricted File Upload Vulnerability in AREA 17 Twill CMS Media Library
CVE-2026-15518

5.1MEDIUM

Key Information:

Vendor

Area 17

Status
Twill Cms
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15518?

An unrestricted file upload vulnerability exists in the Area 17 Twill CMS in the Media Library's FileLibraryController functionality. The vulnerability is triggered through improper handling of the input parameter 'qqfilename' in the 'storeFile' method located in the src/Http/Controllers/Admin/FileLibraryController.php file. This flaw allows remote attackers to upload malicious files without any authentication, potentially compromising the integrity of the web application. Despite being made aware of the issue, the vendor has not provided an adequate response or patch.

Affected Version(s)

Twill CMS 3.0

Twill CMS 3.1

Twill CMS 3.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-15518 - Proof of Concept

References

https://vuldb.com/vuln/377847
vdb-entrytechnical-description
https://vuldb.com/vuln/377847/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15518
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jobyer Ahmed
suffer (VulDB User)
VulDB CNA Team
.