CVE-2025-57919 HIGH

CVE-2025-57919: WordPress ConveyThis plugin <= 269.1 - PHP Object Injection vulnerability

Vendor Conveythis
Product ConveyThis
Weakness CWE-502 · Unsafe deserialization
Published September 22, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in ConveyThis ConveyThis conveythis-translate allows Object Injection.This issue affects ConveyThis: from n/a through <= 269.1.

Explanation of Vulnerability in Simple Terms

02Summary

ConveyThis versions up to 269.1 contain a deserialization vulnerability that allows authenticated administrators to execute arbitrary code on the site. An attacker with high-level admin access can craft malicious serialized data that, when processed by the plugin, runs their own PHP code. This requires admin-level privileges and direct access to the vulnerable code path.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site with full server privileges.

Potential impact on your site

04Site Impact

A compromised admin account can fully compromise the site, steal data, or modify content.

Conditions required to exploit

05Prerequisites

Attacker must have high-level administrator access to the site.

Key dates

06Disclosure timeline

September 22, 2025 CVE published
April 28, 2026 Record updated