CVE-2023-39307 HIGH

CVE-2023-39307: WordPress Avada theme <= 7.11.1 - Authenticated Arbitrary File Upload vulnerability

Vendor Themefusion

Product Avada

Weakness CWE-434 · Unrestricted file upload

Published March 26, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.5/10

Attack vector Network

Attack complexity High

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/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 ThemeFusion Avada.This issue affects Avada: from n/a through 7.11.1.

Explanation of Vulnerability in Simple Terms

02Summary

Avada allows authenticated users with low privileges to upload files without proper validation, potentially enabling them to upload malicious code. The vulnerability affects versions up to 7.11.1. An attacker can bypass file type restrictions and upload executable files, compromising site integrity and confidentiality. Update to a version newer than 7.11.1 to remediate.

What an attacker can do

03Attacker Capabilities

Upload malicious files (including executable code) to the site server.

Potential impact on your site

04Site Impact

Attackers with basic user accounts can upload and execute code, potentially taking over the site.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege authenticated account; no user interaction required.

Key dates

06Disclosure timeline

March 26, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-39307 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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