CVE-2022-4628 Easy PayPal Buy Now Button < 1.7.4 - Contributor+ Stored XSS in Shortcode

Medium 5.4 Published Updated

Contributors can inject malicious scripts via shortcode attributes in the Easy PayPal Buy Now Button plugin, leading to stored XSS attacks.

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-2022-4628?

CVE-2022-4628 is a medium-severity cross-site scripting vulnerability in Unknown Easy PayPal Buy Now Button, published on 13 Feb 2023. 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 Easy PayPal Buy Now Button WordPress plugin before 1.7.4 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Which versions are affected by CVE-2022-4628?

It affects 1 product.

Products include Wpplugin Easy Paypal Buy Now Button.

How do I fix CVE-2022-4628?

No fix has been published for CVE-2022-4628 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-2022-4628 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4628 exists.

Sources

Also known as GHSA-7764-pjx3-6vw6.

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