CVE-2026-0594 List Site Contributors <= 1.1.8 - Reflected Cross-Site Scripting via alpha
Unauthenticated attackers can inject arbitrary web scripts via the alpha parameter, 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-2026-0594?
CVE-2026-0594 is a medium-severity cross-site scripting vulnerability in mallsop List Site Contributors, published on 14 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 List Site Contributors plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'alpha' parameter in versions up to, and including, 1.1.8 due to insufficient input sanitization and output escaping. 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-2026-0594?
How do I fix CVE-2026-0594?
No fix has been published for CVE-2026-0594 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-2026-0594 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-0594 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-j96m-g28p-cw7g.