CVE-2021-24414 YT Player < 1.4 - Contributor+ Stored Cross-Site Scripting
Contributors can inject malicious scripts via YouTube player shortcodes, leading to stored XSS attacks on WordPress sites.
- 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-2021-24414?
CVE-2021-24414 is a medium-severity cross-site scripting vulnerability in Unknown Video Player for YouTube, published on 25 Oct 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 Video Player for YouTube WordPress plugin before 1.4 does not sanitise or validate the parameters from its shortcode, allowing users with a role as low as contributor to set Cross-Site Scripting payload in them which will be triggered in the page/s with the embed malicious shortcode
Weakness: CWE-79
Which versions are affected by CVE-2021-24414?
It affects 1 product.
Products include Video Player for Youtube Project Video Player for Youtube.
How do I fix CVE-2021-24414?
No fix has been published for CVE-2021-24414 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-2021-24414 being exploited?
There is no known exploitation of CVE-2021-24414 in the wild and no public exploit code.
Sources
Also known as GHSA-73w3-w58j-9gvg.