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.

• CWE-20

• https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142Third Party Advisory
• https://rastating.github.io/miniblog-remote-code-execution/Exploit, Third Party Advisory
• https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142Third Party Advisory
• https://rastating.github.io/miniblog-remote-code-execution/Exploit, Third Party Advisory

Published

Apr 16, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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