Arbitrary file upload in Kooboo Cms
CVE-2021-36581
Kooboo CMS 2.1.1.0 is vulnerable to Insecure file upload. It is possible to upload any file extension to the server. The server does not verify the extension of the file and the tester was able to upload an aspx to the server.
Vulnerability class: Unrestricted File Upload
EPSS: 0.014 (70.8th 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
- Kooboo Kooboo_cms — versions 2.1.1.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Permissions Required, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-36581?
- CVE-2021-36581 is a critical-severity vulnerability in Kooboo Cms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-09-14.
- How severe is CVE-2021-36581?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-36581 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.