# CVE-2013-20009: Linksys WAG200G through 1.01.06 Stored XSS via policy_name Parameter

Status: published. Published: 2026-10-28. Updated: 2026-11-03.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linksys / WAG200G: ≥ 0; ≤ 1.01.06 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 4.8 (medium); 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; source: CNA: VulnCheck

- CVSS 3.1: 4.8 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.22% as of 2026-11-02; percentile 12.92%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-79

## Exploit evidence

- exploit: https://www.exploit-db.com/exploits/24476 (CNA: VulnCheck)

## References

- https://www.s3cur1ty.de/m1adv2013-016 (CNA: VulnCheck; third-party-advisory)

- https://www.exploit-db.com/exploits/24476 (CNA: VulnCheck; exploit)

- https://www.vulncheck.com/advisories/linksys-wag200g-through-1.01.06-stored-xss-via-policy-name-parameter (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2013-20009; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2013-20009; retrieved 2026-11-03; source updated Not reported

Revision: 363580231ecb920fd3c1f0211dbb2a76af0a7c82b941127365bd6d179ba4dd2d

Canonical: https://y2.dev/cve/CVE-2013-20009

## Agent and API access

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- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.