CVE-2026-25449 CRITICAL

CVE-2026-25449: WordPress Traveler theme < 3.2.8.1 - PHP Object Injection vulnerability

Vendor Shinetheme
Product Traveler
Weakness CWE-502 · Unsafe deserialization
Published March 18, 2026
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 shinetheme Traveler traveler allows Object Injection.This issue affects Traveler: from n/a through < 3.2.8.1.

Explanation of Vulnerability in Simple Terms

02Summary

Traveler versions up to 3.2.8.1 contain a deserialization vulnerability that allows unauthenticated attackers to run arbitrary code on the site without user interaction. The vulnerability exists in how the product processes untrusted serialized data. An attacker can exploit this remotely over the network to gain full control of the affected installation.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site, read all data, modify content, and take full control of the installation.

Potential impact on your site

04Site Impact

Complete compromise of the site and all data hosted on it; attacker gains administrative control.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

March 18, 2026 CVE published
April 28, 2026 Record updated