CVE-2021-24513 Form Builder < 1.9.8.4 - Authenticated Stored Cross-Site Scripting
Authenticated admins can inject malicious scripts into Form Builder titles, enabling stored XSS attacks against other users.
- 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-2021-24513?
CVE-2021-24513 is a medium-severity cross-site scripting vulnerability in Unknown Form Builder | Create Responsive Contact Forms, published on 6 Sep 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 Form Builder | Create Responsive Contact Forms WordPress plugin before 1.9.8.4 does not sanitise or escape its Form Title, allowing high privilege users such as admin to set Cross-Site Scripting payload in them, even when the unfiltered_html capability is disallowed
Weakness: CWE-79
Which versions are affected by CVE-2021-24513?
It affects 1 product.
Products include Web-Settler Form Builder.
How do I fix CVE-2021-24513?
No fix has been published for CVE-2021-24513 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-2021-24513 being exploited?
There is no known exploitation of CVE-2021-24513 in the wild and no public exploit code.
Other vulnerabilities in Unknown Form Builder | Create Responsive Contact Forms
Sources
Also known as GHSA-4c89-7wj7-fm5r.