Arbitrary file upload in Horizontcms Project
CVE-2020-28693
An unrestricted file upload issue in HorizontCMS 1.0.0-beta allows an authenticated remote attacker to upload PHP code through a zip file by uploading a theme, and executing the PHP file via an HTTP GET request to /themes/<php_file_name>
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Horizontcms Project — versions 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/jkana/HorizontCMS-1.0.0-beta-shell-upload (Exploit, Third Party Advisory)
- github.com/ttimot24/HorizontCMS/issues/21 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28693?
- CVE-2020-28693 is a high-severity vulnerability in Horizontcms Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-11-16.
- How severe is CVE-2020-28693?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-28693 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.