What is CVE-2019-18992?

CVE-2019-18992 is a medium-severity vulnerability in Openwrt, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-12-03.

How severe is CVE-2019-18992?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2019-18992 known to be exploited?

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

XSS in Openwrt

CVE-2019-18992

OpenWrt 18.06.4 allows XSS via these Name fields to the cgi-bin/luci/admin/network/firewall/rules URI: "Open ports on router" and "New forward rule" and "New Source NAT" (this can occur, for example, on a TP-Link Archer C7 device).

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Openwrt — versions 18.06.4
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

paragmhatre10/OpenWrt-vulnerabilities

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-18992?: CVE-2019-18992 is a medium-severity vulnerability in Openwrt, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-12-03.
How severe is CVE-2019-18992?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2019-18992 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.