CVEvulnerability
CVE-2019-9845
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2019-04-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-20
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 configurations
• miniblog.core project miniblog.core (<= 2019-01-16)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://github.com/madskristensen/Miniblog.Core/blob/master/src/Controllers/BlogController.cs#L142 Third 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#L142 Third Party Advisory
- https://rastating.github.io/miniblog-remote-code-execution/ Exploit, Third Party Advisory