CVE-2020-9280

Name: CVE-2020-9280
Creator: NVD / NIST
Published: 2020-04-15T21:15:36.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.69%

Last modified Jun 17, 2026

CVE-2020-9280 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.69% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.69%

74.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Silverstripe	Silverstripe	>= 4.0.0, <= 4.5.0

References

https://forum.silverstripe.org/c/releasesVendor Advisory
https://www.silverstripe.org/download/security-releases/Vendor Advisory
https://www.silverstripe.org/download/security-releases/cve-2020-9280Vendor Advisory
https://forum.silverstripe.org/c/releasesVendor Advisory
https://www.silverstripe.org/download/security-releases/Vendor Advisory
https://www.silverstripe.org/download/security-releases/cve-2020-9280Vendor Advisory

Timeline

Published: Apr 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9280?

How severe is CVE-2020-9280?

CVE-2020-9280 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9280?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9280?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST