CVE-2019-1827 Cisco Small Business RV320 and RV325 Routers Online Help Reflected Cross-Site Scripting Vulnerability

Medium 6.1 Published Updated

An unauthenticated remote attacker can execute arbitrary script code or access sensitive browser information via a reflected XSS vulnerability in the router's Online Help service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-1827?

CVE-2019-1827 is a medium-severity cross-site scripting vulnerability in Cisco Rv320 Firmware, published on 4 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability in the Online Help web service of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the service. The vulnerability exists because the Online Help web service of an affected device insufficiently validates user-supplied input. An attacker could exploit this vulnerability by persuading a user of the service to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected service or access sensitive browser-based information.This vulnerability affects Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers running firmware releases prior to 1.4.2.22.

Weakness: CWE-79

Which versions are affected by CVE-2019-1827?

It affects 2 products.

Products include Cisco Rv320 Firmware, Cisco Rv325 Firmware.

How do I fix CVE-2019-1827?

No fix has been published for CVE-2019-1827 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-1827 being exploited?

There is no known exploitation of CVE-2019-1827 in the wild and no public exploit code.

All Cisco Rv320 Firmware vulnerabilities

Sources

Also known as GHSA-82x3-cxj5-262m.

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