Unrestricted Upload Vulnerability in H-ui.admin by Dynamic Systems
CVE-2025-15426

6.9MEDIUM

Key Information:

Vendor

Jackying

Status
H-ui.admin
Vendor
CVE Published:
2 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15426?

A vulnerability has been discovered in the H-ui.admin version up to 3.1 that allows for unrestricted file uploads through a specific function in the /lib/webuploader/0.1.5/server/preview.php file. This issue can be exploited remotely, enabling attackers to upload files without proper validation. The publicly available exploit poses significant security risks, particularly as prior communications with the vendor have not yielded a response regarding mitigation. Users are advised to take immediate precautions to secure their applications against potential attacks.

Affected Version(s)

H-ui.admin 3.0

H-ui.admin 3.1

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-2025-15426 - Proof of Concept

References

https://vuldb.com/?id.339348
vdb-entry
https://vuldb.com/?ctiid.339348
signaturepermissions-required
https://vuldb.com/?submit.721457
third-party-advisory

CVSS V4

Score:
6.9
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

sT1TcH (VulDB User)
JSON
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CVE-2025-15426 : Unrestricted Upload Vulnerability in H-ui.admin by Dynamic Systems