CVE-2022-39256

Name: CVE-2022-39256
Creator: NVD / NIST
Published: 2022-09-27T15:15:09.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2022-39256 is a high-severity vulnerability rated 8/10 on the CVSS scale. Orckestra C1 CMS is a .NET based Web Content Management System. A vulnerability in versions prior to 6.13 allows remote attackers to execute arbitrary code on affected installations of Orckestra C1 CMS. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

Orckestra C1 CMS is a .NET based Web Content Management System. A vulnerability in versions prior to 6.13 allows remote attackers to execute arbitrary code on affected installations of Orckestra C1 CMS. Authentication is required to exploit this vulnerability. The authenticated user may perform the actions unknowingly by visiting a specially crafted site. This issue is patched in C1 CMS v6.13. There are no known workarounds.

Metrics

CVSS 3.1

8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.18%

63.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Orckestra	C1 Cms	< 6.13

References

https://github.com/Orckestra/C1-CMS-Foundation/pull/814Patch, Third Party Advisory
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.13Release Notes, Third Party Advisory
https://github.com/Orckestra/C1-CMS-Foundation/security/advisories/GHSA-gfhp-jgp6-838jThird Party Advisory
https://github.com/Orckestra/C1-CMS-Foundation/pull/814Patch, Third Party Advisory
https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.13Release Notes, Third Party Advisory
https://github.com/Orckestra/C1-CMS-Foundation/security/advisories/GHSA-gfhp-jgp6-838jThird Party Advisory

Timeline

Published: Sep 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39256?

How severe is CVE-2022-39256?

CVE-2022-39256 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39256?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-39256?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST