CVE-2019-9845

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.

Score

CVSS 3.0 9.8 Critical

Status

Modified - cve@mitre.org

Published

2019-04-16

Last modified

2024-08-04

Weaknesses

CWE-20

Affected products

• Miniblog.core (Miniblog.core Project)

References

• https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142
• https://rastating.github.io/miniblog-remote-code-execution/