Hello World is a WordPress plugin with the following stats:
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The Hello World plugin for WordPress is vulnerable to Arbitrary File Reading in all versions up to, and including, 2.1.1 via the hello_world_lyric() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.
Vulnerability data provided by Wordfence Intelligence (opens in a new tab). CVE data: Copyright 1999–2026 The MITRE Corporation. CVE Terms of Use (opens in a new tab).
Similar to "Hello Dolly", this plugin lets you choose from some lyrics files, of which one line is shown in your dashboard on every page load.
In tribute to the famous “Hello Dolly” plugin by Matt Mullenweg comes this new plugin. And how could someone possible name a new default plugin other than “Hello World”, as it’s THE definition for a default example 🙂
Yes, you can! Just create a folder wp-content/uploads/hello-world-lyrics and save your lyric file there, with one “quote” per line.
Please report security bugs found in the source code of the Hello World plugin through the Patchstack Vulnerability Disclosure Program. The Patchstack team will assist you with verification, CVE assignment, and notify the developers of this plugin.
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