CVE-2025-13676 JustClick registration plugin <= 0.1 - Reflected Cross-Site Scripting via PHP_SELF
Unauthenticated attackers can inject arbitrary web scripts via PHP_SELF in the JustClick registration plugin, requiring user interaction to execute.
- 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-2025-13676?
CVE-2025-13676 is a medium-severity cross-site scripting vulnerability in ostin654 JustClick registration plugin, published on 24 Jan 2026. 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
The JustClick registration plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in all versions up to, and including, 0.1. This is due to insufficient input sanitization and output escaping on the `PHP_SELF` server variable. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Weakness: CWE-79
Which versions are affected by CVE-2025-13676?
How do I fix CVE-2025-13676?
No fix has been published for CVE-2025-13676 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-2025-13676 being exploited?
There is no known exploitation of CVE-2025-13676 in the wild and no public exploit code.
Sources
Also known as GHSA-2j74-qxpq-23qj.