CVE-2025-53239 WordPress User Registration Aide Plugin <= 1.5.3.8 - Cross Site Scripting (XSS) Vulnerability

High 7.1 Published Updated

Reflected XSS in User Registration Aide plugin allows attackers to execute arbitrary scripts in victim browsers.

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-2025-53239?

CVE-2025-53239 is a high-severity cross-site scripting vulnerability in bnovotny User Registration Aide, published on 6 Nov 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 bnovotny User Registration Aide user-registration-aide allows Reflected XSS.This issue affects User Registration Aide: from n/a through <= 1.5.3.8.

Weakness: CWE-79

Which versions are affected by CVE-2025-53239?

How do I fix CVE-2025-53239?

No fix has been published for CVE-2025-53239 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-2025-53239 being exploited?

There is no known exploitation of CVE-2025-53239 in the wild and no public exploit code.

Sources

Also known as GHSA-97fx-g7m5-mqpj.

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