CVE-2025-57926 WordPress Passster Plugin <= 4.2.18 - Cross Site Scripting (XSS) Vulnerability
An attacker can inject malicious scripts into the Passster plugin, potentially executing code in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-57926?
CVE-2025-57926 is a medium-severity cross-site scripting vulnerability in WP Chill Passster, published on 22 Sep 2025. Any signed-in user can exploit it over the network, 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 WP Chill Passster content-protector allows Stored XSS.This issue affects Passster: from n/a through <= 4.2.18.
Weakness: CWE-79
Which versions are affected by CVE-2025-57926?
How do I fix CVE-2025-57926?
No fix has been published for CVE-2025-57926 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-2025-57926 being exploited?
There is no known exploitation of CVE-2025-57926 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-64m4-87j8-fj5c.