Linksys EA7500 2.0.8.194281 - Cross-Site Scripting

2021-03-29
ID: 104185
CVE: None
Download vulnerable application: None
# Exploit Title:  
# Date: 3/24/21
# Exploit Author: MiningOmerta
# Vendor Homepage: https://www.linksys.com/
# Version: EA7500 Firmware Version: 2.0.8.194281
# CVE: CVE-2012-6708
# Tested On: Linksys EA7500 (jQuery version 1.7.1)

# Cross-Site Scripting Vulnerability on modern versions of Linksys Smart-Wifi home routers. 
# Caused by outdated jQuery(strInput) version : <= 1.7.1  (Fixed in version 1.9.0)
# Credit also to Reddit user michael1026

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POC
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1. When logging into the router (http://LHOST or http://LHOST:10080), choose "Click Here" 
   next to "Dont Have an Account? " or Choose "click here" after "To login with your Linksys Smart Wi-Fi account", 
   you will be redirected with a login prompt with both Email Address and Password forms. 

2. Make your email address "<img src=0 onerror=alert(XSS)>" without the double quotes. 

3. Payload will be triggered when mouse is clicked anywhere within the Email Address form box or when form is submitted.
1-4-2 (www01)