CVE-2021-24476 Steam Group Viewer <= 2.1 - Authenticated Stored Cross-Site Scripting (XSS)
Authenticated attackers can inject malicious scripts via Steam Group Address settings, potentially hijacking user sessions in WordPress sites using this plugin.
- 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-2021-24476?
CVE-2021-24476 is a medium-severity cross-site scripting vulnerability in Unknown Steam Group Viewer, published on 2 Aug 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 Steam Group Viewer WordPress plugin through 2.1 does not sanitise or escape its "Steam Group Address" settings before outputting it in the page, leading to an authenticated Stored Cross-Site Scripting issue
Weakness: CWE-79
Which versions are affected by CVE-2021-24476?
It affects 1 product.
Products include Steam Group Viewer Project Steam Group Viewer.
How do I fix CVE-2021-24476?
No fix has been published for CVE-2021-24476 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-2021-24476 being exploited?
There is no known exploitation of CVE-2021-24476 in the wild and no public exploit code.
Sources
Also known as GHSA-8j3v-gq95-c8m8.