CVE-2020-36863 Nagios XI < 5.7.2 Unrestricted File Upload via Audio Import Directory
Authenticated attackers can upload malicious PHP files to the Audio Import directory in Nagios XI to achieve remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36863?
CVE-2020-36863 is a high-severity vulnerability in Nagios Nagios Xi, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Nagios XI versions prior to 5.7.2 allow PHP files to be uploaded to the Audio Import directory and executed from that location. The upload handler did not properly restrict file types or enforce storage outside of the webroot, and the web server permitted execution within the upload directory. An authenticated attacker with access to the audio import feature could upload a crafted PHP file and then request it to achieve remote code execution with the privileges of the application service.
Weakness: CWE-434
Which versions are affected by CVE-2020-36863?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2020-36863?
No fix has been published for CVE-2020-36863 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-36863 being exploited?
There is no known exploitation of CVE-2020-36863 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-6qrg-xqpq-vmx9.