CVE-2025-24539 WordPress DeBounce Email Validator plugin <= 5.6.5 - Reflected Cross Site Scripting (XSS) vulnerability

High 7.1 Published Updated

Reflected XSS in DeBounce Email Validator allows attackers to execute scripts in user browsers, requiring a plugin update.

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-2025-24539?

CVE-2025-24539 is a high-severity cross-site scripting vulnerability in DeBounce Email Validator, published on 17 Apr 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 debounce DeBounce Email Validator debounce-io-email-validator allows Reflected XSS.This issue affects DeBounce Email Validator: from n/a through <= 5.6.5.

Weakness: CWE-79

Which versions are affected by CVE-2025-24539?

How do I fix CVE-2025-24539?

No fix has been published for CVE-2025-24539 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-2025-24539 being exploited?

There is no known exploitation of CVE-2025-24539 in the wild and no public exploit code.

Sources

Also known as GHSA-7wcr-h9xc-5cxf.

Is CVE-2025-24539 in your software?

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