What is the CVSS score of CVE-2026-1331?

CVE-2026-1331 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Meetinghub Paperless Meetings are affected by CVE-2026-1331?

Organizations using MeetingHub developed by HAMASTAR Technology face critical risk from CVE-2026-1331, a unrestricted file upload vulnerability rated CVSS 9.8.

How to fix or mitigate CVE-2026-1331?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Review file handling controls and restrict upload directories.

Meetinghub Paperless Meetings CVE-2026-1331

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2026-01-22 twcert@cert.org.tw

File Upload RCE Meetinghub Paperless Meetings

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 22, 2026 - 09:15 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

HAMASTAR MeetingHub has an arbitrary file upload vulnerability allowing unauthenticated remote attackers to upload web shells and achieve full server compromise.

Technical ContextAI

MeetingHub by HAMASTAR Technology has a CWE-434 unrestricted file upload vulnerability that allows unauthenticated attackers to upload executable files to the web server without any file type validation.