CVE-2024-34555 CRITICAL

CVE-2024-34555: WordPress Z-Downloads plugin <= 1.11.3 - Auth. Arbitrary File Upload vulnerability

Vendor Urban Base

Product Z-Downloads

Weakness CWE-434 · Unrestricted file upload

Published May 13, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in URBAN BASE Z-Downloads.This issue affects Z-Downloads: from n/a through 1.11.3.

Explanation of Vulnerability in Simple Terms

02Summary

Z-Downloads versions up to 1.11.3 allow unauthenticated attackers to upload arbitrary files to the server without restriction. An attacker can upload malicious files—such as PHP scripts—to gain control of the site. The vulnerability requires no authentication or user interaction, making it trivial to exploit remotely. Update to version 1.12.1 or later.

What an attacker can do

03Attacker Capabilities

Upload arbitrary files, including executable code, to the server without authentication.

Potential impact on your site

04Site Impact

Attackers can upload malicious files and execute code on your site, leading to complete compromise.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 13, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-34555 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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