CVE-2019-18211 is a critical unvalidated deserialization vulnerability affecting Orckestra C1 CMS through version 6.6, specifically within the EntityTokenSerializer class in Composite.dll. This flaw allows any low-privilege user to achieve arbitrary remote code execution. With a CVSS score of 8.8 (HIGH), it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While there is no known active exploitation, public exploit code, or significant community discussion, the potential for severe compromise remains.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 6.6CPE matchmatch criteria | cpe:2.3:a:orckestra:c1_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
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.