CVE-2021-24619 Per Page Add to Head <= 1.4.4 - Authenticated Stored XSS

Medium 4.8 Published Updated

Authenticated users can inject malicious HTML into settings, leading to stored Cross-Site Scripting attacks against other users.

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-2021-24619?

CVE-2021-24619 is a medium-severity cross-site scripting vulnerability in Unknown Per page add to head, published on 13 Sep 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Per page add to head WordPress plugin through 1.4.4 does not properly sanitise one of its setting, allowing malicious HTML to be inserted by high privilege users even when the unfiltered_html capability is disallowed, which could lead to Cross-Site Scripting issues.

Weakness: CWE-79

Which versions are affected by CVE-2021-24619?

It affects 1 product.

Products include Evona per Page Add to Head.

How do I fix CVE-2021-24619?

No fix has been published for CVE-2021-24619 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-2021-24619 being exploited?

There is no known exploitation of CVE-2021-24619 in the wild and no public exploit code.

Sources

Also known as GHSA-hcj7-753j-h8mf.

Is CVE-2021-24619 in your software?

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