CVE-2021-33179 Cross-site scripting in Nagios XI
Authenticated attackers can execute arbitrary scripts in victim browsers via crafted URLs in Nagios XI, potentially leading to session hijacking or data theft.
- 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-2021-33179?
CVE-2021-33179 is a medium-severity cross-site scripting vulnerability in Nagios Nagios Xi, published on 14 Oct 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
The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload.
Weakness: CWE-79
Which versions are affected by CVE-2021-33179?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2021-33179?
No fix has been published for CVE-2021-33179 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-2021-33179 being exploited?
There is no known exploitation of CVE-2021-33179 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-mc87-6p2r-88mx.