Arbitrary file upload in Miniblog Project
CVE-2019-9842
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.
Vulnerability class: Unrestricted File Upload
EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Miniblog_project Miniblog
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-9842?
- CVE-2019-9842 is a high-severity vulnerability in Miniblog Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2019-06-14.
- How severe is CVE-2019-9842?
- High severity. CVSS v3 base score is 7.2 out of 10.