CVE-2021-35489 Cross-site scripting in n/a
Reflected XSS in Thruk allows attackers to inject JavaScript via host or service parameters, potentially compromising authenticated user sessions.
- 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-2021-35489?
CVE-2021-35489 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 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
Thruk 2.40-2 allows /thruk/#cgi-bin/extinfo.cgi?type=2&host={HOSTNAME]&service={SERVICENAME]&backend={BACKEND] Reflected XSS via the host or service parameter. An attacker could inject arbitrary JavaScript into extinfo.cgi. The malicious payload would be triggered every time an authenticated user browses the page containing it.
Weakness: CWE-79
Which versions are affected by CVE-2021-35489?
It affects 1 product.
Products include Thruk Thruk.
How do I fix CVE-2021-35489?
No fix has been published for CVE-2021-35489 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-2021-35489 being exploited?
There is no known exploitation of CVE-2021-35489 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-6642-wv2w-7c29.