CVE-2019-9842 File upload in n/a
Remote attackers can execute arbitrary code by uploading malicious files via the blog post handler due to missing file extension validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-9842?
CVE-2019-9842 is a high-severity vulnerability in n/a, published on 14 Jun 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2019-9842?
It affects 1 product.
Products include Miniblog Project Miniblog.
How do I fix CVE-2019-9842?
No fix has been published for CVE-2019-9842 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-9842 being exploited?
There is no known exploitation of CVE-2019-9842 in the wild and no public exploit code.
Sources
Also known as GHSA-q26p-9rm7-92f4.