CVE-2025-39499 CRITICAL

CVE-2025-39499: WordPress Medicare Theme <= 2.1.0 - PHP Object Injection vulnerability

Vendor Boldthemes
Product Medicare
Weakness CWE-502 · Unsafe deserialization
Published May 23, 2025
Last update April 28, 2026

CVSS base score

9.8/10
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:U/C:H/I:H/A:H

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in BoldThemes Medicare medicare allows Object Injection.This issue affects Medicare: from n/a through <= 2.1.0.

Explanation of Vulnerability in Simple Terms

02Summary

BoldThemes Medicare versions 2.1.0 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on affected sites. The vulnerability exists in how the product processes untrusted serialized data without proper validation. An attacker can exploit this remotely over the network without requiring user interaction or authentication.

What an attacker can do

03Attacker Capabilities

Run their own code on the site and take complete control of it.

Potential impact on your site

04Site Impact

Complete compromise of the site, including data theft, malware installation, and site defacement.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 23, 2025 CVE published
April 28, 2026 Record updated