What is CVE-2018-19922?

CVE-2018-19922 is a medium-severity vulnerability in Actiontec C1000a, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-06.

How severe is CVE-2018-19922?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-19922 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Actiontec C1000a

CVE-2018-19922

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (53.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-19922?: CVE-2018-19922 is a medium-severity vulnerability in Actiontec C1000a, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-06.
How severe is CVE-2018-19922?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-19922 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.