CVE-2020-9309 is a high-severity vulnerability affecting Silverstripe CMS through version 4.5, allowing script execution from malicious file uploads under allowed extensions (e.g., HTML in a TXT file). When these files are stored as protected or draft content, browser MIME detection can lead to script execution, potentially resulting in high impact to confidentiality, integrity, and availability. The attack requires user interaction (UI:R) but can be executed remotely (AV:N). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.0.0CPE matchmatch criteria | cpe:2.3:a:silverstripe:mimevalidator:*:*:*:*:*:*:*:* | ||
>= 4.0.0, < 4.6.0CPE matchmatch criteria | cpe:2.3:a:silverstripe:recipe:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.