CVE-2021-39420 Cross-site scripting in n/a
Attackers can inject malicious scripts via search and attachment parameters in VFront, potentially stealing data or executing code.
- 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-2021-39420?
CVE-2021-39420 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 Nov 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
Multiple Cross Site Scripting (XSS) vulnerabilities exist in VFront 0.99.5 via the (1) s parameter in search_all.php and the (2) msg parameter in add.attach.php.
Weakness: CWE-79
Which versions are affected by CVE-2021-39420?
It affects 1 product.
Products include Vfront Vfront.
How do I fix CVE-2021-39420?
No fix has been published for CVE-2021-39420 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-2021-39420 being exploited?
There is no known exploitation of CVE-2021-39420 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8pw3-x6rp-jj5q.