CVE-2026-4683 MEDIUM

CVE-2026-4683: Smartcat Translator for WPML <= 3.1.77 - Missing Authorization to Unauthenticated Plugin Settings Update

Vendor Smartcatai
Product Smartcat Translator for WPML
Weakness CWE-862 · Missing authorization
Published May 15, 2026
Last update May 15, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Smartcat Translator for WPML plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'routeData' REST endpoint in all versions up to, and including, 3.1.77. This makes it possible for unauthenticated attackers to overwrite the plugin's Smartcat API credentials (account ID, API secret key, hub key, API host, and hub host), effectively hijacking the translation service or causing a denial of service.

Explanation of Vulnerability in Simple Terms

02Summary

The Smartcat Translator for WPML plugin through version 3.1.77 lacks proper authorization checks, allowing unauthenticated attackers to modify site data and disrupt service. The vulnerability requires no user interaction and is remotely exploitable over the network. Site administrators should update to a version newer than 3.1.77 immediately.

What an attacker can do

03Attacker Capabilities

Modify site content and disrupt service availability without authentication.

Potential impact on your site

04Site Impact

Attackers can alter translations and disable the plugin's functionality without logging in.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

May 15, 2026 CVE published
May 15, 2026 Record updated