CVE-2025-22727 WordPress MailChimp Subscribe Form plugin <= 4.1 - Cross Site Scripting (XSS) vulnerability

Medium 6.5 Published Updated

An attacker can inject malicious scripts into the MailChimp Subscribe Forms 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-2025-22727?

CVE-2025-22727 is a medium-severity cross-site scripting vulnerability in PluginOps MailChimp Subscribe Forms, published on 21 Jan 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 PluginOps MailChimp Subscribe Forms mailchimp-subscribe-sm allows Stored XSS.This issue affects MailChimp Subscribe Forms : from n/a through <= 4.1.

Weakness: CWE-79

Which versions are affected by CVE-2025-22727?

How do I fix CVE-2025-22727?

No fix has been published for CVE-2025-22727 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-2025-22727 being exploited?

There is no known exploitation of CVE-2025-22727 in the wild and no public exploit code.

Sources

Also known as GHSA-whwp-53wx-h4ph.

Is CVE-2025-22727 in your software?

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