---
id: "CVE-2013-20009"
kind: "vulnerability"
aliases: ["CVE-2013-20009"]
title: "Linksys WAG200G router: stored XSS via policy_name runs in admin browsers"
severity: "medium"
cvss: 4.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["home-router", "infrastructure", "linksys", "self-hosted", "wag200g"]
not_affected_if: ["no-wag200g", "other-hardware"]
published_at: "2026-10-28T03:17:07+00:00"
first_seen_at: "2026-10-28T03:31:01+00:00"
updated_at: "2026-10-28T03:32:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-20009", "first_seen_at": "2026-10-28T03:31:01+00:00"}]
---

# Linksys WAG200G router: stored XSS via policy_name runs in admin browsers

Linksys WAG200G firmware through 1.01.06 lets an authenticated user save a malicious policy name through setup.cgi. The script runs in an administrator's browser when they open the Status > Wireless page.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the firmware version on the device's status page against `1.01.06` or earlier
- Look for an unexpected policy name containing script tags under the access restriction settings

## Timeline

- 2026-10-28T03:31:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2013-20009

## From the sources

Linksys WAG200G through 1.01.06 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject scripts via the policy_name parameter in setup.cgi. Attackers can save a malicious policy name from the AccessRes.htm page that executes in administrators' browsers when viewing the Status > Wireless page.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_