A WordPress plugin used on over 300,000 websites has been found to contain vulnerabilities that could allow hackers to seize control. Security researchers at Wordfence found two critical flaws in the POST SMTP Mailer plugin. The first flaw made it possible for attackers to reset the plugin's authentication API key and view sensitive logs (including password reset emails) on the affected website. A malicious hacker exploiting the flaw could access the key after triggering a password reset.
Jetpack, an extremely popular WordPress plugin that provides a variety of functions including security features for around five million websites, has received a critical security update following the discovery of a bug that has lurked unnoticed since 2012. Jetpack's maintainers, Automattic, announced on Tuesday that it had worked closely with the WordPress security team to push out an automatic patch for every version of Jetpack since 2.0.
By default, the WordPress administrative login page displays a helpful error message whenever an account user types in the wrong username/email address or password. Unfortunately, these same helpful error messages can also be abused to assist a threat actor to validate account usernames/email addresses and/or passwords. An incorrect username/password guess combination generates the following error message: “The username ‘name-entered’ is not registered on this site”.
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