CVE-2021-24331 Smooth Scroll Page Up/Down Buttons < 1.4 - Authenticated Stored XSS

Medium 4.8 Published Updated

Authenticated admins can inject XSS payloads via plugin settings, potentially leading to code execution in the admin interface.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-24331?

CVE-2021-24331 is a medium-severity cross-site scripting vulnerability in Unknown Smooth Scroll Page Up/Down Buttons, published on 1 Jun 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Smooth Scroll Page Up/Down Buttons WordPress plugin before 1.4 did not properly sanitise and validate its settings, such as psb_distance, psb_buttonsize, psb_speed, only validating them client side. This could allow high privilege users (such as admin) to set XSS payloads in them

Weakness: CWE-79

Which versions are affected by CVE-2021-24331?

It affects 1 product.

Products include Smooth Scroll Page Up\/Down Buttons Project Smooth Scroll Page Up\/Down Buttons.

How do I fix CVE-2021-24331?

No fix has been published for CVE-2021-24331 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-2021-24331 being exploited?

There is no known exploitation of CVE-2021-24331 in the wild and no public exploit code.

Sources

Also known as GHSA-7mh2-3h46-3mff.

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