What is the CVSS score of CVE-2024-52399?

CVE-2024-52399 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Clarisse K. Writer Helper CVE-2024-52399

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2024-11-16 audit@patchstack.com

File Upload

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVSS changed

Apr 23, 2026 - 15:22 NVD

9.9 (CRITICAL)

CVE Published

Nov 16, 2024 - 22:15 nvd

N/A

CVE Published

Nov 16, 2024 - 22:15 cve.org

CRITICAL 9.9

DescriptionCVE.org

Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Writer Helper writer-helper allows Upload a Web Shell to a Web Server.This issue affects Writer Helper: from n/a through <= 3.1.6.

AnalysisAI

Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Writer Helper writer-helper allows Upload a Web Shell to a Web Server.1.6.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.