CVE-2026-1331 PUBLISHED

AMASTAR Technology｜MeetingHub - Arbitrary File Upload

Assigner: twcert
Reserved: 22.01.2026 Published: 22.01.2026 Updated: 22.01.2026

MeetingHub developed by HAMASTAR Technology has an Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

CVSS 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
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	AMASTAR Technology
Product	MeetingHub
Versions	Default: unaffected Version 0 is affected

Solutions

Install the patch with version 20251210 or later.

References

Problem Types

CWE-434 Unrestricted Upload of File with Dangerous Type CWE

Impacts

CAPEC-650 Upload a Web Shell to a Web Server