CVE-2025-39480 CRITICAL

CVE-2025-39480: WordPress Car Dealer theme < 1.6.8 - PHP Object Injection vulnerability

Vendor Thememakers

Product Car Dealer

Weakness CWE-502 · Unsafe deserialization

Published May 23, 2025

Last update April 28, 2026

View on NVD All CVEs

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 ThemeMakers Car Dealer cardealer allows Object Injection.This issue affects Car Dealer: from n/a through < 1.6.8.

Explanation of Vulnerability in Simple Terms

02Summary

Car Dealer versions 1.6.8 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the server. The vulnerability exists in how the product processes untrusted serialized data without proper validation. An attacker can exploit this remotely without user interaction to gain full control of the affected site.

What an attacker can do

03Attacker Capabilities

Run their own code on the server, read/modify all site data, and take complete control of the site.

Potential impact on your site

04Site Impact

Complete compromise of the site and server; attacker can steal data, modify content, and use the server for further attacks.

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

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-39480 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

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