CVE-2021-42549 reflected XSS in search functionality of WP Cloud Plugins - Lets-Box
Unauthenticated attackers can execute arbitrary scripts via reflected XSS in the Lets-Box WordPress plugin search functionality.
- 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-2021-42549?
CVE-2021-42549 is a medium-severity cross-site scripting vulnerability in WP Cloud Plugins Lets-Box, published on 13 Dec 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
Insufficient Input Validation in the search functionality of Wordpress plugin Lets-Box prior to 1.15.3 allows unauthenticated user to craft a reflected Cross-Site Scripting attack.
Weakness: CWE-79
Which versions are affected by CVE-2021-42549?
It affects 1 product.
Products include Wpcloudplugins Lets-Box.
How do I fix CVE-2021-42549?
No fix has been published for CVE-2021-42549 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-2021-42549 being exploited?
There is no known exploitation of CVE-2021-42549 in the wild and no public exploit code.
Sources
Also known as GHSA-vvwh-jqqq-8v6c.