CVE-2024-52406 CRITICAL

CVE-2024-52406: WordPress CSV to html plugin <= 3.26 - Arbitrary File Upload vulnerability

Vendor Wibergsweb

Product CSV to html

Weakness CWE-434 · Unrestricted file upload

Published November 16, 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 wibergsweb CSV to html csv-to-html allows Upload a Web Shell to a Web Server.This issue affects CSV to html: from n/a through <= 3.26.

Explanation of Vulnerability in Simple Terms

02Summary

CSV to HTML versions 3.26 and earlier allow authenticated users to upload files without proper validation. An attacker with low-level access can upload malicious files that may lead to code execution or site compromise. The vulnerability affects the entire system due to scope change, making it a critical risk for any site running this component.

What an attacker can do

03Attacker Capabilities

Upload malicious files to the server and execute code or compromise the site.

Potential impact on your site

04Site Impact

Any authenticated user can upload files and potentially take over your site or access sensitive data.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

November 16, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-52406 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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