Arbitrary file upload in N5 Upload Form Project
CVE-2021-24223
The N5 Upload Form WordPress plugin through 1.0 suffers from an arbitrary file upload issue in page where a Form from the plugin is embed, as any file can be uploaded. The uploaded filename might be hard to guess as it's generated with md5(uniqid(rand())), however, in the case of misconfigured servers with Directory listing enabled, accessing it is trivial.
Vulnerability class: Unrestricted File Upload
EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- N5_upload_form_project N5_upload_form
- Unknown N5 Upload Form — versions 1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- contact@wpscan.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-24223?
- CVE-2021-24223 is a critical-severity vulnerability in N5 Upload Form Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-04-12.
- How severe is CVE-2021-24223?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-24223 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.