CVE-2019-9845 – madskristensen.aspnetcore.miniblog

Package

Manager: nuget
Name: madskristensen.aspnetcore.miniblog
Vulnerable Version: >=0 <=1.0.3

Severity

Level: Critical

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: 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

EPSS: 0.00864 pctl0.74241

Details

MadsKristensen.AspNetCore.Miniblog subject to Improper Input Validation 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.

Metadata

Created: 2019-07-05T21:11:13Z
Modified: 2022-09-17T00:54:46Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/07/GHSA-958r-g534-ccmr/GHSA-958r-g534-ccmr.json
CWE IDs: ["CWE-20"]
Alternative ID: GHSA-958r-g534-ccmr
Finding: F184
Auto approve: 1