What is GHSA-958r-g534-ccmr?

GHSA-958r-g534-ccmr is a security advisory published by GitHub Security Advisories with Critical severity. MadsKristensen.AspNetCore.Miniblog subject to Improper Input Validation

Which CVE IDs does GHSA-958r-g534-ccmr cover?

GHSA-958r-g534-ccmr covers the following CVE IDs: CVE-2019-9845. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-958r-g534-ccmr?

GHSA-958r-g534-ccmr has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

Which products are affected by GHSA-958r-g534-ccmr?

GHSA-958r-g534-ccmr affects 1 product, including: nuget/MadsKristensen.AspNetCore.Miniblog:\u003c= 1.0.3.

GHSA-958r-g534-ccmrCriticalCVSS 9.8

MadsKristensen.AspNetCore.Miniblog subject to Improper Input Validation

Vendor

GitHub Security Advisories

Published

July 5, 2019

Last Modified

January 11, 2023

🔗 CVE IDs covered (1)

CVE-2019-9845 →

📋 Description

madskristensen Miniblog.Core through 2019-01-16 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in Controllers/BlogController.cs writes a decoded base64 string to a file without validating the extension.

🎯 Affected products1

nuget/MadsKristensen.AspNetCore.Miniblog:<= 1.0.3

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2019-9845
https://github.com/advisories/GHSA-958r-g534-ccmr
https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142
https://rastating.github.io/miniblog-remote-code-execution/