CVE-2021-41917 Cross-site scripting in n/a
Authenticated users can inject malicious scripts via client names, leading to stored XSS attacks against other users and administrators.
- 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-2021-41917?
CVE-2021-41917 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 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
webTareas version 2.4 and earlier allows an authenticated user to store arbitrary web script or HTML by creating or editing a client name in the clients section, due to incorrect sanitization of user-supplied data and achieve a Stored Cross-Site Scripting attack against the platform users and administrators. The affected endpoint is /clients/editclient.php, on the HTTP POST cn parameter.
Weakness: CWE-79
Which versions are affected by CVE-2021-41917?
It affects 1 product.
Products include Webtareas Project Webtareas.
How do I fix CVE-2021-41917?
No fix has been published for CVE-2021-41917 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-2021-41917 being exploited?
There is no known exploitation of CVE-2021-41917 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-xqp5-p8c3-h4gm.