CVE-2022-24789

Deserialization of untrusted data in C1 CMS.

HIGH
7.6
CVSS Score
Published: March 28, 2022 at 09:45 PM UTC
Updated: June 17, 2026 at 04:32 AM UTC
1 product affected across 1 vendorC1 CMS

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Severity
HIGH7.6
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

C1 CMS is an open-source, .NET based Content Management System (CMS). Versions prior to 6.12 allow an authenticated user to exploit Server Side Request Forgery (SSRF) by causing the server to make arbitrary GET requests to other servers in the local network or on localhost. The attacker may also truncate arbitrary files to zero size (effectively delete them) leading to denial of service (DoS) or altering application logic. The authenticated user may unknowingly perform the actions by visiting a specially crafted site. Patched in C1 CMS v6.12, no known workarounds exist.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.12
Affected range stops below 6.12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-918

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