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

High 7.1 Published Updated

A CSRF vulnerability in the Internal Link Optimiser WordPress plugin allows attackers to inject stored XSS payloads, potentially compromising user sessions and site integrity.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-39547?

CVE-2025-39547 is a high-severity vulnerability in Toast Plugins Internal Link Optimiser, published on 16 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-352

Which versions are affected by CVE-2025-39547?

How do I fix CVE-2025-39547?

No fix has been published for CVE-2025-39547 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-39547 being exploited?

There is no known exploitation of CVE-2025-39547 in the wild and no public exploit code.

Sources

Also known as GHSA-fcc8-29wg-87m4.

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