CVE-2023-46149 CRITICAL

CVE-2023-46149: WordPress Themify Ultra Theme <= 7.3.5 is vulnerable to Arbitrary File Upload

Vendor Themify

Product Themify Ultra

Weakness CWE-434 · Unrestricted file upload

Published December 20, 2023

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 Themify Themify Ultra.This issue affects Themify Ultra: from n/a through 7.3.5.

Explanation of Vulnerability in Simple Terms

02Summary

Themify Ultra versions up to 7.3.5 do not properly validate file uploads, allowing authenticated users to upload arbitrary files to the site. An attacker with low-level access can upload malicious files—such as PHP scripts—that execute on the server. This grants the attacker full control over the site's content, data, and functionality.

What an attacker can do

03Attacker Capabilities

Upload and execute arbitrary files (e.g., PHP scripts) on the site server.

Potential impact on your site

04Site Impact

Compromised site with potential data theft, malware injection, and complete loss of control.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

December 20, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-46149 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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