CVE-2026-84960 WP-Members Membership Plugin <= 3.5.6 - Reflected Cross-Site Scripting
Unauthenticated attackers can inject arbitrary scripts via URL query strings, requiring user interaction to execute malicious code in the victim's browser.
- 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-2026-84960?
CVE-2026-84960 is a medium-severity cross-site scripting vulnerability in cbutlerjr WP-Members Membership Plugin, published on 11 Sep 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 WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 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. Successful exploitation requires the victim to first visit the attacker-crafted URL and then click the Terms of Service link rendered on the resulting registration page.
Weakness: CWE-79
Which versions are affected by CVE-2026-84960?
How do I fix CVE-2026-84960?
No fix has been published for CVE-2026-84960 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-2026-84960 being exploited?
There is no known exploitation of CVE-2026-84960 in the wild and no public exploit code.
Sources
Also known as GHSA-5v88-f6fh-jphx.