CVE-2021-38157 Cross-site scripting in n/a
Unauthenticated attackers can execute arbitrary scripts via reflected XSS in the user parameter of the unsupported LeoStream Connection Broker.
- 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-2021-38157?
CVE-2021-38157 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 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
LeoStream Connection Broker 9.x before 9.0.34.3 allows Unauthenticated Reflected XSS via the /index.pl user parameter. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Weakness: CWE-79
Which versions are affected by CVE-2021-38157?
It affects 1 product.
Products include Leostream Connection Broker.
How do I fix CVE-2021-38157?
No fix has been published for CVE-2021-38157 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-2021-38157 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-38157 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-q29w-c798-qpqq.