CVE-2025-39547 HIGH

CVE-2025-39547: WordPress Internal Link Optimiser plugin <= 5.1.3 - CSRF to XSS vulnerability

Vendor Toast Plugins
Product Internal Link Optimiser
Weakness CWE-352 · CSRF
Published April 16, 2025
Last update May 12, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in Toast Plugins Internal Link Optimiser internal-link-finder allows Stored XSS.This issue affects Internal Link Optimiser: from n/a through <= 5.1.3.

Explanation of Vulnerability in Simple Terms

02Summary

Internal Link Optimiser versions 5.1.3 and earlier contain a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without their knowledge. The vulnerability requires the admin to visit the attacker's page while authenticated to the WordPress site.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on the site by tricking an authenticated admin into visiting a malicious webpage.

Potential impact on your site

04Site Impact

An attacker can modify site settings or content through the plugin if an admin visits a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Site admin must be logged in and visit an attacker-controlled webpage; no special privileges or complex setup required.

Key dates

06Disclosure timeline

April 16, 2025 CVE published
May 12, 2026 Record updated