CVE-2024-5317 Newsletter <= 8.3.4 - Unauthenticated Stored Cross-Site Scripting via np1

Medium 6.4 Published Updated

Unauthenticated attackers can inject arbitrary web scripts via the np1 parameter, leading to stored XSS execution when users view affected pages.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-5317?

CVE-2024-5317 is a medium-severity cross-site scripting vulnerability in satollo Newsletter – Send awesome emails from WordPress, published on 5 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'np1' parameter in all versions up to, and including, 8.3.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers 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-2024-5317?

It affects 1 product.

Products include Thenewsletterplugin Newsletter.

How do I fix CVE-2024-5317?

Upgrade to a fixed version.

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-2024-5317 being exploited?

There is no known exploitation of CVE-2024-5317 in the wild and no public exploit code.

Sources

Also known as GHSA-mjwc-4vr5-7xr3.

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