Cisco Small Business RV042 and RV042G Routers XSS (cisco-sa-sa-rv-routers-xss-K7Z5U6q3)

Medium Nessus Plugin ID 138327


The remote device is missing a vendor-supplied security patch


According to its self-reported version, Cisco Small Business RV Series Router Firmware is affected by a cross-site scripting (XSS) vulnerability in its web-based management console due to improper validation of user-supplied input before returning it to users. An unauthenticated, remote attacker can exploit this, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user's browser session.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvu06343

See Also

Plugin Details

Severity: Medium

ID: 138327

File Name: cisco-sa-sa-rv-routers-xss-K7Z5U6q3.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 2020/07/09

Updated: 2020/07/10

Dependencies: 122115

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2020-3431

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:small_business_rv_series_router_firmware

Required KB Items: Cisco/Small_Business_Router/Version, Cisco/Small_Business_Router/Device

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/07/01

Vulnerability Publication Date: 2020/07/01

Reference Information

CVE: CVE-2020-3431


CISCO-SA: cisco-sa-sa-rv-routers-xss-K7Z5U6q3

IAVA: 2020-A-0285

CWE: 79