CVE-2024-37424 CRITICAL

CVE-2024-37424: WordPress Newspack Blocks plugin <= 3.0.8 - Arbitrary File Upload vulnerability

Vendor Automattic

Product Newspack Blocks

Weakness CWE-434 · Unrestricted file upload

Published July 9, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.9/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in Automattic Newspack Blocks allows Upload a Web Shell to a Web Server.This issue affects Newspack Blocks: from n/a through 3.0.8.

Explanation of Vulnerability in Simple Terms

02Summary

Newspack Blocks allows authenticated users with low privileges to upload files without proper validation, potentially enabling them to upload malicious code. The vulnerability affects all versions up to 3.0.8. An attacker can exploit this to run their own code on the site and compromise other users' data or site functionality.

What an attacker can do

03Attacker Capabilities

Upload and execute malicious files on the site, potentially running their own code and accessing sensitive data.

Potential impact on your site

04Site Impact

Site could be fully compromised, including data theft, malware injection, and loss of site control.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege authenticated account (e.g., contributor or subscriber role).

Key dates

06Disclosure timeline

July 9, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-37424 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/434.html AskarLabs — CWE-434 write-up Unrestricted Upload of File with Dangerous Type

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