CVE-2026-1331

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

M

eetingHub 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.

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:hamastar:meetinghub_paperless_meetings:*:*:*:*:*:*:*:*

History

17 Feb 2026, 19:32

Type	Values Removed	Values Added
CPE		cpe:2.3:a:hamastar:meetinghub_paperless_meetings::::::::
References	~~() https://www.twcert.org.tw/en/cp-139-10651-ff09c-2.html -~~	() https://www.twcert.org.tw/en/cp-139-10651-ff09c-2.html - Third Party Advisory
References	~~() https://www.twcert.org.tw/tw/cp-132-10650-a5ee9-1.html -~~	() https://www.twcert.org.tw/tw/cp-132-10650-a5ee9-1.html - Third Party Advisory
First Time		Hamastar Hamastar meetinghub Paperless Meetings

22 Jan 2026, 09:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-22 09:15

Updated : 2026-02-17 19:32

NVD link : CVE-2026-1331

Mitre link : CVE-2026-1331

CVE.ORG link : CVE-2026-1331

JSON object : View

Products Affected

meetinghub_paperless_meetings

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

{"id": "CVE-2026-1331", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-01-22T09:15:52.197", "references": [{"url": "https://www.twcert.org.tw/en/cp-139-10651-ff09c-2.html", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.twcert.org.tw/tw/cp-132-10650-a5ee9-1.html", "tags": ["Third Party Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-02-17T19:32:31.533", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:hamastar:meetinghub_paperless_meetings:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "251B1D2A-2FF9-44AE-B652-D3830D85689C", "versionEndExcluding": "2025-12-10"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}