CVE-2025-15426CWE-284CWE-434

jackying H-ui.admin preview.php unrestricted upload

Medium · published January 2, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
38.5
In the wild
Unconfirmed
What it is

⚠️ A sneaky file upload vulnerability hides in H-ui.admin versions up to 3.1! With a little trickery, an attacker can remotely upload files without restriction! Think of it like a restaurant that lets anyone drop off a mysterious package in the kitchen without checking what's inside — no questions asked! This oversight can lead to some unappetizing consequences for your server. An attacker could exploit this vulnerability to upload malicious files, potentially leading to remote code execution or data breaches. It’s like opening your doors to anyone willing to deliver a mystery dish — and you have no idea what's cooking!

Put simply

Think of it like a restaurant that lets anyone drop off a mysterious package in the kitchen without checking what's inside — no questions asked! This oversight can lead to some unappetizing consequences for your server. This vulnerability allows unauthorized file uploads due to a flaw in the upload handling within /lib/webuploader/0.1.5/server/preview.php. As a result, attackers can bypass restrictions and upload any file they choose.

What to do

An attacker could exploit this vulnerability to upload malicious files, potentially leading to remote code execution or data breaches. It’s like opening your doors to anyone willing to deliver a mystery dish — and you have no idea what's cooking! To secure your system, update to the latest version of H-ui.admin where this vulnerability is patched. Additionally, implement strict file validation and authentication checks to prevent unauthorized uploads. Don't leave your kitchen open to surprises! You've got this! Take action now, and you'll have your security fortified in no time! 🛡️

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00455 · 38.5th percentile
Weaknesses
CWE-284 · Improper Access Control; CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-01-02T03:32Z
EPSS history
Timeline
  • 02 JAN 03:32Z
    jackying H-ui.admin preview.php unrestricted upload
    cvelistv5