High severity7.2NVD Advisory· Published Jun 14, 2019· Updated Jun 17, 2026
CVE-2019-9842
CVE-2019-9842
Description
madskristensen MiniBlog through 2018-05-18 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in app_code/handlers/PostHandler.cs writes a decoded base64 string to a file without validating the extension.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- madskristensen/MiniBlogdescription
- Range: <=2018-05-18
Patches
Vulnerability mechanics
References
2- rastating.github.io/miniblog-remote-code-execution/nvdExploitThird Party Advisory
- github.com/madskristensen/MiniBlog/blob/1a7ae45ddba484e2c8f808e288e018748c9ddb57/Website/app_code/handlers/PostHandler.csnvdThird Party Advisory
News mentions
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