CVE-2022-3828 Video Thumbnails <= 2.12.3 - Admin+ Stored XSS
Admins can inject malicious scripts via unsanitized settings in the Video Thumbnails plugin, bypassing multisite restrictions.
- 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-2022-3828?
CVE-2022-3828 is a medium-severity cross-site scripting vulnerability in Unknown Video Thumbnails, published on 28 Nov 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Video Thumbnails WordPress plugin through 2.12.3 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
Which versions are affected by CVE-2022-3828?
It affects 1 product.
Products include Video Thumbnails Project Video Thumbnails.
How do I fix CVE-2022-3828?
No fix has been published for CVE-2022-3828 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-2022-3828 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3828 exists.
Sources
Also known as GHSA-463j-v4qx-4h6h.