CVE-2025-1028 HIGH

CVE-2025-1028: Contact Manager <= 8.6.4 - Unauthenticated Arbitrary Double File Extension Upload

Vendor Kleor
Product Contact Manager
Weakness CWE-434 · Unrestricted file upload
Published February 5, 2025
Last update April 8, 2026

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The Contact Manager plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the contact form upload feature in all versions up to, and including, 8.6.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible in specific configurations where the first extension is processed over the final. This vulnerability also requires successfully exploiting a race condition in order to exploit.

Key dates

02Disclosure timeline

February 5, 2025 CVE published
April 8, 2026 Record updated