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TI-2022-08602 Aliases CVE-2022-24789GHSA-8pp6-8x4q-c5mx

Deserialization of untrusted data in C1 CMS.

Priority LOW 35CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00764 55th percentileScored 2026-11-07
Fix Fixed C1-CMS-Foundation (Orckestra): 6.12C1CMS.Assemblies (NuGet): 6.12.8122.18346

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OrckestraC1-CMS-Foundationbefore 6.126.12Patch availableCNA
—C1CMS.Assemblies (NuGet)before 6.12.8122.183466.12.8122.18346Patch availableGHSA-8pp6-8x4q-c5mx
  • C1-CMS-Foundation VendorOrckestra Affected before 6.12 Fixed in 6.12 Patch available CNA
  • C1CMS.Assemblies (NuGet) Vendor— Affected before 6.12.8122.18346 Fixed in 6.12.8122.18346 Patch available GHSA-8pp6-8x4q-c5mx

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:orckestra:c1_cms:*:*:*:*:*:*:*:*before 6.12VulnerableOrckestra
  • cpe:2.3:a:orckestra:c1_cms:*:*:*:*:*:*:*:* Versions before 6.12 Vulnerable ·Orckestra

Remediation

  • Fix · CNA C1-CMS-Foundation (Orckestra) Fixed in 6.12
  • Fix · GHSA-8pp6-8x4q-c5mx C1CMS.Assemblies (NuGet) Fixed in 6.12.8122.18346 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-24789
  2. 2026-10-03 Alias added: GHSA-8pp6-8x4q-c5mx

References

Advisory 3

Other 1

  • TI-2021-13979 Deserialization of untrusted data in Orckestra C1 CMS CVSS 3.1HIGH 8.8
  • TI-2022-18632 Orckestra C1 CMS's deserialization of untrusted data allows for arbitrary code execution. CVSS 3.1CRITICAL 9.0
  • TI-2019-13230 An issue was discovered in Orckestra C1 CMS through 6.6. CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences