CVE-2026-1331 — CRITICAL (9.8)

Q: How severe is CVE-2026-1331?

CVE-2026-1331 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-1331?

Check the references section above for vendor advisories and patch information. Affected products include: Hamastar Meetinghub Paperless Meetings.

Vulnerability Description

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 Score

9.8

CRITICAL

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

Affected Products

Vendor	Product	Versions
Hamastar	Meetinghub Paperless Meetings	< 2025-12-10

Related Weaknesses (CWE)

CWE-434

References

https://www.twcert.org.tw/en/cp-139-10651-ff09c-2.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-10650-a5ee9-1.htmlThird Party Advisory

FAQ

What is CVE-2026-1331?

CVE-2026-1331 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ...

How severe is CVE-2026-1331?

CVE-2026-1331 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-1331?

Check the references section above for vendor advisories and patch information. Affected products include: Hamastar Meetinghub Paperless Meetings.