DotVVM: Unrestricted file upload
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.4%
exploitation probability
0.4%top 62% of all CVEs
observed exploitation
nono source reports it
DotVVM 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
riganti · dotvvmReferences
https://github.com/riganti/dotvvm/commit/1635245b5eaf9ccf8e3536b9d8b1941819526585https://github.com/riganti/dotvvm/commit/4fc26a8591c76fb92ed701352c2a84120cf926c5https://github.com/riganti/dotvvm/commit/6af982bbe3b00bdac00f1c0efe9365d52db642efhttps://github.com/riganti/dotvvm/releases/tag/v4.3.15https://github.com/riganti/dotvvm/releases/tag/v5.0.0-preview09https://github.com/riganti/dotvvm/security/advisories/GHSA-2rm3-333w-xvc4