CVE-2018-19922: Actiontec c1000a Firmware

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Persistent Cross-Site Scripting (XSS) in the advancedsetup_websiteblocking.html Website Blocking page of the Actiontec C1000A router with firmware through CAC004-31.30L.95 allows a remote attacker to inject arbitrary HTML into the Website Blocking page by inserting arbitrary HTML into the 'TodUrlAdd' URL parameter in a /urlfilter.cmd POST request.

Affected products

• Actiontec c1000a Firmware: up to and including cac004-31.30l.95

Published 2018-12-06. Last modified 2026-06-17.