A CyCognito research team conducting routine reconnaissance on a customer’s network found a cross-site scripting zero day (XSS) vulnerability on the web admin interface of two different small business Cisco routers.

The finding was released in a blog that went live earlier today.

Alex Zaslavsky, CyCognito’s head of security research, said they reported the flaw to Cisco and the router vendor has since fixed the issue. He said attackers value XSS vulnerabilities because they can use them to access a victim’s existing session and even take over an account, impersonate the victim and access their data.   

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