CVE-2021-24326 All 404 Redirect to Homepage < 1.21 - Authenticated Reflected Cross-Site Scripting (XSS)

Medium 5.4 Published Updated

Authenticated attackers can execute arbitrary scripts via the tab parameter in the All 404 Redirect to Homepage plugin settings page.

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-2021-24326?

CVE-2021-24326 is a medium-severity cross-site scripting vulnerability in Unknown All 404 Redirect to Homepage, published on 17 May 2021. 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 tab parameter of the settings page of the All 404 Redirect to Homepage WordPress plugin before 1.21 was vulnerable to an authenticated reflected Cross-Site Scripting (XSS) issue as user input was not properly sanitised before being output in an attribute.

Weakness: CWE-79

Which versions are affected by CVE-2021-24326?

It affects 1 product.

Products include Clogica All 404 Redirect to Homepage.

How do I fix CVE-2021-24326?

No fix has been published for CVE-2021-24326 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-2021-24326 being exploited?

There is no known exploitation of CVE-2021-24326 in the wild and no public exploit code.

Sources

Also known as GHSA-8fv5-7m8g-42cx.

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