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CVE-2023-2433 YARPP – Yet Another Related Posts Plugin <= 5.30.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Medium 6.4 Published Updated

Authenticated contributors can inject arbitrary web scripts via the className parameter, leading to stored XSS execution for other users.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-2433?

CVE-2023-2433 is a medium-severity cross-site scripting vulnerability in jeffparker YARPP – Yet Another Related Posts Plugin, published on 18 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The YARPP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'className' parameter in versions up to, and including, 5.30.3 due to insufficient input sanitization and output escaping. This makes it possible for contributor-level 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-2023-2433?

It affects 1 product.

Products include Yarpp Yet Another Related Posts Plugin.

How do I fix CVE-2023-2433?

No fix has been published for CVE-2023-2433 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-2023-2433 being exploited?

There is no known exploitation of CVE-2023-2433 in the wild and no public exploit code.

Sources

Also known as GHSA-7vgv-q3q2-pq8f.

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