CVE-2025-57959 WordPress Slightly troublesome permalink Plugin <= 1.2.0 - Cross Site Scripting (XSS) Vulnerability
A stored cross-site scripting vulnerability in the Slightly troublesome permalink WordPress plugin allows attackers to inject malicious scripts.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-57959?
CVE-2025-57959 is a medium-severity cross-site scripting vulnerability in tmatsuur Slightly troublesome permalink, published on 22 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tmatsuur Slightly troublesome permalink slightly-troublesome-permalink allows Stored XSS.This issue affects Slightly troublesome permalink: from n/a through <= 1.2.0.
Weakness: CWE-79
Which versions are affected by CVE-2025-57959?
How do I fix CVE-2025-57959?
No fix has been published for CVE-2025-57959 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-57959 being exploited?
There is no known exploitation of CVE-2025-57959 in the wild and no public exploit code.
Sources
Also known as GHSA-9w53-q4gw-3pfp.