CVE-2021-24350 Visitors <= 0.3 - Unauthenticated Stored Cross-Site Scripting (XSS)
Unauthenticated attackers can inject malicious scripts via user agent strings, leading to code execution or account takeover in the WordPress admin panel.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24350?
CVE-2021-24350 is a medium-severity cross-site scripting vulnerability in Unknown Visitors, published on 14 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Visitors WordPress plugin through 0.3 is affected by an Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability. The plugin would display the user's user agent string without validation or encoding within the WordPress admin panel.
Weakness: CWE-79
Which versions are affected by CVE-2021-24350?
It affects 1 product.
Products include Bestwebsoft Visitors Online.
How do I fix CVE-2021-24350?
No fix has been published for CVE-2021-24350 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-2021-24350 being exploited?
There is no known exploitation of CVE-2021-24350 in the wild and no public exploit code.
Other vulnerabilities in Unknown Visitors
Sources
Also known as GHSA-98c2-3mpw-gw7c.