DotVVM: Unrestricted file upload

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-57581
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 18:17:58 UTC
Updated2026-09-30 17:51:56 UTC
DescriptionDotVVM is an open source MVVM framework for web applications. Prior to 4.2.11, 4.3.15, and 5.0.0-preview09-final, applications with configured file upload storage allow unauthenticated users to submit files directly to DotvvmFileUploadMiddleware without an X-DotVVM-UploadToken generated by the FileUpload component. An attacker can repeatedly upload files and fill application storage, causing denial of service. DotvvmConfiguration.Security.AuthorizeFileUpload can additionally restrict which users may upload files. This issue is fixed in versions 4.2.11, 4.3.15, and 5.0.0-preview09-final.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

EPSS: 0.005930000 probability, percentile 0.480600000 (date 2026-10-26)

Problem Types: CWE-434 | CWE-434 CWE-434: Unrestricted Upload of File with Dangerous Type

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Riganti Dotvvm affected < 4.2.11 Not specified
CNA Riganti Dotvvm affected >= 4.3.0, < 4.3.15 Not specified
CNA Riganti Dotvvm affected >= 5.0.0-preview01, < 5.0.0-preview09-final Not specified

References

ReferenceSourceLinkTags
github.com/riganti/dotvvm/commit/1635245b5eaf9ccf8e3536b9d8b1941819526585 [email protected] github.com
github.com/riganti/dotvvm/commit/6af982bbe3b00bdac00f1c0efe9365d52db642ef [email protected] github.com
github.com/riganti/dotvvm/security/advisories/GHSA-2rm3-333w-xvc4 [email protected] github.com
github.com/riganti/dotvvm/releases/tag/v5.0.0-preview09 [email protected] github.com
github.com/riganti/dotvvm/commit/4fc26a8591c76fb92ed701352c2a84120cf926c5 [email protected] github.com
github.com/riganti/dotvvm/releases/tag/v4.3.15 [email protected] github.com
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