Hackers Backdoor Nextcloud Servers Through Critical Flaw in Collabora’s Built-in CODE App

Attackers exploited a flaw in an optional Nextcloud app, Collabora Online – Built-in CODE Server, to plant web shells on Nextcloud servers. Three administrators reported the issue on GitHub, with the first logged attack on September 10.

A web shell is a small file that executes any command an attacker sends via a web request, with the rights of the web server account. The flaw

Source: The Hacker News

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