Arbitrary file upload in Silverstripe
CVE-2020-9280
In SilverStripe through 4.5, files uploaded via Forms to folders migrated from Silverstripe CMS 3.x may be put to the default "/Uploads" folder instead. This affects installations which allowed upload folder protection via the optional silverstripe/secureassets module under 3.x. This module is installed and enabled by default on the Common Web Platform (CWP). The vulnerability only affects files uploaded after an upgrade to 4.x.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.silverstripe.org/download/security-releases/ (Vendor Advisory)
- forum.silverstripe.org/c/releases (Vendor Advisory)
- www.silverstripe.org/download/security-releases/cve-2020-9280 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-9280?
- CVE-2020-9280 is a high-severity vulnerability in Silverstripe, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2020-04-15.
- How severe is CVE-2020-9280?
- High severity. CVSS v3 base score is 7.5 out of 10.