CVE-2025-22521 WordPress wp Hosting Performance Check Plugin <= 2.18.8 - Reflected Cross Site Scripting (XSS) vulnerability
An attacker can execute arbitrary scripts in the context of other users via reflected XSS in the wp Hosting Performance Check plugin.
- 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-2025-22521?
CVE-2025-22521 is a high-severity cross-site scripting vulnerability in Scott Farrell wp Hosting Performance Check, published on 9 Jan 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
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Scott Farrell wp Hosting Performance Check wp-hosting-performance-check allows Reflected XSS.This issue affects wp Hosting Performance Check: from n/a through <= 2.18.8.
Weakness: CWE-79
Which versions are affected by CVE-2025-22521?
How do I fix CVE-2025-22521?
No fix has been published for CVE-2025-22521 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-2025-22521 being exploited?
There is no known exploitation of CVE-2025-22521 in the wild and no public exploit code.
Sources
Also known as GHSA-72fx-77qc-qgxv.