CVE-2023-4821 Drag and Drop Multiple File Upload < 1.1.1 - Unauthenticated Stored Cross-Site Scripting
Unauthenticated attackers can upload malicious SVG or SHTML files to execute scripts in victim browsers via stored XSS.
- 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-2023-4821?
CVE-2023-4821 is a medium-severity cross-site scripting vulnerability in Unknown Drag and Drop Multiple File Upload for WooCommerce, published on 16 Oct 2023. 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 Drag and Drop Multiple File Upload for WooCommerce WordPress plugin before 1.1.1 does not filter all potentially dangerous file extensions. Therefore, an attacker can upload unsafe .shtml or .svg files containing malicious scripts.
Which versions are affected by CVE-2023-4821?
It affects 1 product.
Products include Codedropz Drag and Drop Multiple File Uploader.
How do I fix CVE-2023-4821?
No fix has been published for CVE-2023-4821 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-2023-4821 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4821 exists.
Sources
Also known as GHSA-9c5w-974x-xjxh.