What is CVE-2013-20009?

CVE-2013-20009 is a medium-severity vulnerability in Linksys Wag200g, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-10-28.

How severe is CVE-2013-20009?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Linksys Wag200g

CVE-2013-20009

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.9th percentile), scored 2026-10-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Linksys Wag200g

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.s3cur1ty.de/m1adv2013-016 (third-party-advisory)
www.exploit-db.com/exploits/24476 (exploit)
www.vulncheck.com/advisories/linksys-wag200g-through-1.01.06-stored-xss-via-pol… (third-party-advisory)

Frequently asked questions

What is CVE-2013-20009?: CVE-2013-20009 is a medium-severity vulnerability in Linksys Wag200g, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-10-28.
How severe is CVE-2013-20009?: Medium severity. CVSS v3 base score is 4.8 out of 10.