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TI-2025-04992 Aliases CVE-2025-5552GHSA-w8w4-cj3p-j5vr

ChestnutCMS API Endpoint exec deserialization

Priority MEDIUM 57CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

A vulnerability was found in ChestnutCMS up to 15.1. It has been declared as critical. This vulnerability affects unknown code of the file /dev-api/groovy/exec of the component API Endpoint. The manipulation leads to deserialization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0052 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
—ChestnutCMS15.0; 15.1—No fix listedCNA
  • ChestnutCMS Vendor— Affected 15.0; 15.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:1000mz:chestnutcms:-:*:*:*:*:*:*:*not specified by NVDVulnerable1000mz
  • cpe:2.3:a:1000mz:chestnutcms:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·1000mz

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5552
  2. 2026-10-03 Alias added: GHSA-w8w4-cj3p-j5vr

References

Exploit 1

  • TI-2024-37899 ChestnutCMS <=1.5.0 is vulnerable to File Upload via the Create template function. CVSS 3.1CRITICAL 9.8
  • TI-2024-37682 File Upload vulnerability in ChestnutCMS through 1.5.0. CVSS 3.1CRITICAL 9.8
  • TI-2024-37901 ChestnutCMS <=1.5.0 has an arbitrary file deletion vulnerability in… CVSS 3.1HIGH 7.5
  • TI-2024-37900 ChestnutCMS <=1.5.0 has a directory traversal vulnerability in… CVSS 3.1HIGH 7.5
  • TI-2025-43020 An issue in ChestnutCMS v.1.5.8 and before allows a remote attacker to execute arbitrary… CVSS 3.1HIGH 7.2
  • TI-2025-13692 liweiyi ChestnutCMS Filename upload FilenameUtils.getExtension unrestricted upload CVSS 4.0MEDIUM 5.3
See all 10 →

Sources

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