CVE-2021-24381 NinjaForms < 3.5.8.2 - Admin+ Stored Cross-Site Scripting
High-privilege users can inject malicious scripts via unsanitized form field class names in the Ninja Forms WordPress plugin.
- 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-2021-24381?
CVE-2021-24381 is a medium-severity cross-site scripting vulnerability in Unknown Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress, published on 25 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Ninja Forms Contact Form WordPress plugin before 3.5.8.2 does not sanitise and escape the custom class name of the form field created, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
Weakness: CWE-79
Which versions are affected by CVE-2021-24381?
It affects 1 product.
Products include Ninjaforms Contact Form.
How do I fix CVE-2021-24381?
No fix has been published for CVE-2021-24381 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-2021-24381 being exploited?
There is no known exploitation of CVE-2021-24381 in the wild and no public exploit code.
Sources
Also known as GHSA-57gv-mm7f-cwg6.