CVE-2019-1733: Cisco NX-OS Software NX-API Sandbox Cross-Site Scripting Vulnerability

Severity: medium (CVSS 5.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-05-15 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability in the NX API (NX-API) Sandbox interface for Cisco NX-OS Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the NX-API Sandbox interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the NX-API Sandbox interface. An attacker could exploit this vulnerability by persuading a user of the NX-API Sandbox interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected NX-API Sandbox interface.

Affected products

Cisco NX-OS: from 7.0\(3\)i7 before 7.0\(3\)i7\(4\) — fixed in 7.0\(3\)i7\(4\)

How to fix

Upgrade to a fixed version: Cisco NX-OS 7.0\(3\)i7\(4\). Check the vendor advisory for mitigations.

References

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