CVE-2026-40306

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. All new installations of DNN 10.x.x - 10.2.1 have the same Host GUID. This does not affect upgrades from 9.x.x. Version 10.2.2 patches the issue.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2	Release Notes
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2rhw-gw3f-477j	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) DNN (anteriormente DotNetNuke) es una plataforma de gestión de contenido web de código abierto (CMS) en el ecosistema de Microsoft. Todas las nuevas instalaciones de DNN 10.x.x - 10.2.1 tienen el mismo GUID de Host. Esto no afecta a las actualizaciones desde 9.x.x. La versión 10.2.2 corrige el problema.

Information

Published : 2026-04-17 22:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-40306

Mitre link : CVE-2026-40306

CVE.ORG link : CVE-2026-40306

JSON object : View

Products Affected

dnnsoftware

dotnetnuke

CWE

CWE-330

Use of Insufficiently Random Values

{"id": "CVE-2026-40306", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-40306", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-20T16:18:17.305187Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "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"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "dnnsoftware", "product": "Dnn.Platform", "versions": [{"status": "affected", "version": ">= 10.0.0, < 10.2.2"}]}]}], "published": "2026-04-17T22:16:32.517", "references": [{"url": "https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2rhw-gw3f-477j", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-330"}]}], "descriptions": [{"lang": "en", "value": "DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. All new installations of DNN 10.x.x - 10.2.1 have the same Host GUID. This does not affect upgrades from 9.x.x. Version 10.2.2 patches the issue."}, {"lang": "es", "value": "DNN (anteriormente DotNetNuke) es una plataforma de gesti\u00f3n de contenido web de c\u00f3digo abierto (CMS) en el ecosistema de Microsoft. Todas las nuevas instalaciones de DNN 10.x.x - 10.2.1 tienen el mismo GUID de Host. Esto no afecta a las actualizaciones desde 9.x.x. La versi\u00f3n 10.2.2 corrige el problema."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6FC382D9-3FCA-4150-95AD-BD42A315BE5F", "versionEndExcluding": "10.2.2", "versionStartIncluding": "10.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}