CVE-2019-9875 is a critical deserialization vulnerability affecting Sitecore CMS and Experience Platform versions through 9.1. An authenticated attacker can exploit this flaw by sending a specially crafted serialized .NET object in an HTTP POST parameter, leading to arbitrary code execution. This vulnerability carries a high CVSS score of 8.8, indicating a severe impact with high confidentiality, integrity, and availability compromise. It is actively exploited in the wild, as confirmed by its presence in the KEV catalog, and has garnered significant community discussion, despite a lack of public exploit code or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 9.1CPE matchmatch criteria | cpe:2.3:a:sitecore:cms:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.