CVE-2024-3730 Simple Membership <= 4.4.3 - Authenticated(Contributor+) Stored Cross-Site Scripting via Shortcode

Medium 5.4 Published Updated

Authenticated attackers with contributor access can inject arbitrary scripts via a shortcode, leading to stored XSS execution on victim pages.

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-2024-3730?

CVE-2024-3730 is a medium-severity cross-site scripting vulnerability in wpinsider-1 Simple Membership, published on 25 Apr 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Simple Membership plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'swpm_paypal_subscription_cancel_link' shortcode in all versions up to, and including, 4.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Weakness: CWE-79

Which versions are affected by CVE-2024-3730?

It affects 1 product.

Products include Simple-Membership-Plugin Simple Membership.

How do I fix CVE-2024-3730?

No fix has been published for CVE-2024-3730 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-2024-3730 being exploited?

There is no known exploitation of CVE-2024-3730 in the wild and no public exploit code.

Sources

Also known as GHSA-wm34-m2ww-gx7j.

Is CVE-2024-3730 in your software?

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