CVE-2022-2473 WP-UserOnline <= 2.87.6 - Authenticated (Admin+) Stored Cross-Site Scripting
Administrators can inject arbitrary scripts via the browsing page text parameter, affecting multi-site or restricted HTML installations.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-2473?
CVE-2022-2473 is a medium-severity cross-site scripting vulnerability in gamerz WP-UserOnline, published on 6 Sep 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The WP-UserOnline plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘templates[browsingpage][text]' parameter in versions up to, and including, 2.87.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrative capabilities and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The only affects multi-site installations and installations where unfiltered_html is disabled.
Weakness: CWE-79
Which versions are affected by CVE-2022-2473?
It affects 1 product.
Products include Wp-Useronline Project Wp-Useronline.
How do I fix CVE-2022-2473?
No fix has been published for CVE-2022-2473 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-2022-2473 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2473 exists.
Other vulnerabilities in gamerz WP-UserOnline
Sources
Also known as GHSA-m3m9-j74g-58fw.