CVE-2020-9309
Title: Script Execution via Malicious Upload
Proof Of Concept
No public PoC currently indexed for CVE-2020-9309.
Vulnerability Summary
CVE-2020-9309: Silverstripe CMS through 4.5 can be susceptible to script execution from malicious upload contents under allowed file extensions (for example HTML code in a TXT file). When these files are stored as protected or draft files, the MIME detection can cause browsers to execute the file contents. Uploads stored as protected or draft files are allowed by default for authorised users only, but can also be enabled through custom logic as well as modules such as silverstripe/userforms. Sites using the previously optional silverstripe/mimevalidator module can configure MIME whitelists rather than extension whitelists, and hence prevent this issue. Sites on the Common Web Platform (CWP) use this module by default, and are not affected.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
CVE-2020-9309 Exploits & PoCs (Proof Of Concept)
No public PoCs found in our database for this CVE.
Vulnerability data or affected products updated.
Vulnerability first announced in NVD.
Attack Vector Matrix
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Stack
No specific products linked.