CVE-2021-38710 Cross-site scripting in n/a
Attackers can inject persistent scripts via the SITE_NAME parameter in Yclas, potentially leading to session hijacking or malicious actions.
- 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-2021-38710?
CVE-2021-38710 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 Aug 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
Static (Persistent) XSS Vulnerability exists in version 4.3.0 of Yclas when using the install/view/form.php script. An attacker can store XSS in the database through the vulnerable SITE_NAME parameter.
Weakness: CWE-79
Which versions are affected by CVE-2021-38710?
It affects 1 product.
Products include Yclas Yclas.
How do I fix CVE-2021-38710?
No fix has been published for CVE-2021-38710 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-2021-38710 being exploited?
There is no known exploitation of CVE-2021-38710 in the wild and no public exploit code.
Sources
Also known as GHSA-4qj7-wcgp-pm8p.