8.7
HIGH CVSS 4.0
CVE-2020-36867
Nagios XI < 5.7.3 Command Injection in Report PDF Download
Description

Nagios XI versions prior to 5.7.3 contain a command injection vulnerability in the report PDF download/export functionality. User-supplied values used in the PDF generation pipeline or the wrapper that invokes offline/pdf helper utilities were insufficiently validated or improperly escaped, allowing an authenticated attacker who can trigger PDF exports to inject shell metacharacters or arguments.

INFO

Published Date :

Oct. 30, 2025, 10:15 p.m.

Last Modified :

Oct. 30, 2025, 10:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2020-36867 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Nagios xi
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 HIGH [email protected]
Solution
Update Nagios XI to a version that addresses the command injection vulnerability.
  • Upgrade Nagios XI to version 5.7.3 or later.
  • Validate all user inputs for PDF generation.
  • Sanitize or escape shell metacharacters in user inputs.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-36867.

URL Resource
https://www.nagios.com/changelog/nagios-xi/
https://www.vulncheck.com/advisories/nagios-xi-command-injection-in-report-pdf-download
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-36867 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-36867 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-36867 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 30, 2025

    Action Type Old Value New Value
    Added Description Nagios XI versions prior to 5.7.3 contain a command injection vulnerability in the report PDF download/export functionality. User-supplied values used in the PDF generation pipeline or the wrapper that invokes offline/pdf helper utilities were insufficiently validated or improperly escaped, allowing an authenticated attacker who can trigger PDF exports to inject shell metacharacters or arguments.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-78
    Added Reference https://www.nagios.com/changelog/nagios-xi/
    Added Reference https://www.vulncheck.com/advisories/nagios-xi-command-injection-in-report-pdf-download
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.7
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability