CVE-2021-24568 AddToAny < 1.7.46 - Authenticated Stored XSS
Authenticated administrators can inject malicious scripts via the Sharing Header setting, leading to stored XSS attacks on frontend pages.
- 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-2021-24568?
CVE-2021-24568 is a medium-severity cross-site scripting vulnerability in Unknown AddToAny Share Buttons, 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 AddToAny Share Buttons WordPress plugin before 1.7.46 does not sanitise its Sharing Header setting when outputting it in frontend pages, allowing high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
Weakness: CWE-79
Which versions are affected by CVE-2021-24568?
It affects 1 product.
Products include Addtoany Addtoany Share Buttons.
How do I fix CVE-2021-24568?
No fix has been published for CVE-2021-24568 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-2021-24568 being exploited?
There is no known exploitation of CVE-2021-24568 in the wild and no public exploit code.
Other vulnerabilities in Unknown AddToAny Share Buttons
Sources
Also known as GHSA-x39g-7rq2-35qp.