CVE-2024-52399

WordPress Writer Helper plugin <= 3.1.6 - Arbitrary File Upload vulnerability

9.9 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.49%Up 0.4 points since Nov 17, 2024

What each source reports

CVE List Score used 9.9

WordPress Writer Helper plugin <= 3.1.6 - Arbitrary File Upload vulnerability

Record: CVE-2024-52399
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2024-45888 9.9

Record: EUVD-2024-45888
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-qvmg-rp5m-rgw8 9.9

Unrestricted Upload of File with Dangerous Type vulnerability in Clarisse K. Writer Helper allows...

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

Record: GHSA-qvmg-rp5m-rgw8
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

NVD 9.9

Record: CVE-2024-52399
CVSS 3.1: 9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-52399 is a critical vulnerability (CVSS 9.9) in Clarisse K. Writer Helper, published November 16, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.