CVE-2026-1331CWE-434

AMASTAR Technology|MeetingHub - Arbitrary File Upload

Critical · published January 22, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
54.4
In the wild
Unconfirmed
What it is

🚨 An unauthenticated attacker can upload a web shell to your server with just a single file — that's the entire exploit of MeetingHub's critical flaw! 🔥 Think of it as allowing someone to slip a fake package into your warehouse without checking the label. Once inside, they can access and tamper with anything they like, just as an attacker can execute any code they desire on the server. This is absolutely devastating! An attacker who successfully exploits this flaw could gain full control of the server, read sensitive data, modify files, and even disrupt services. The potential for data loss and damage to your organization’s reputation is immense.

Put simply

Think of it as allowing someone to slip a fake package into your warehouse without checking the label. Once inside, they can access and tamper with anything they like, just as an attacker can execute any code they desire on the server. The Arbitrary File Upload vulnerability in MeetingHub permits unauthenticated users to upload malicious files, enabling them to execute arbitrary code on the server via web shell backdoors.

What to do

This is absolutely devastating! An attacker who successfully exploits this flaw could gain full control of the server, read sensitive data, modify files, and even disrupt services. The potential for data loss and damage to your organization’s reputation is immense. Immediate action is crucial! Patch to the latest version of MeetingHub available from HAMASTAR Technology. Implement strict file validation checks and consider limiting file upload capabilities to authorized users only. You've got this! Take these steps to secure your server and protect your data. 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00748 · 54.4th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-01-22T08:57Z
EPSS history
Timeline
  • 22 JAN 08:57Z
    AMASTAR Technology|MeetingHub - Arbitrary File Upload
    cvelistv5