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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.53% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- miniblog.core project/miniblog.core
- Source
- cve@mitre.org
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.