WordPress 5.1 CSRF to Remote Code Execution

13 Mar 2019 by Simon Scannell

WordPress Remote Code Execution

Last month we released an authenticated remote code execution (RCE) vulnerability in WordPress 5.0. This blog post reveals another critical exploit chain for WordPress 5.1 that enables an unauthenticated attacker to gain remote code execution on any WordPress installation prior to version 5.1.1.

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WordPress 5.0.0 Remote Code Execution

19 Feb 2019 by Simon Scannell

WordPress Remote Code Execution

This blog post details how a combination of a Path Traversal and Local File Inclusion vulnerability lead to Remote Code Execution in the WordPress core. The vulnerability remained uncovered in the WordPress core for over 6 years.

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Learnings from WordPress Security Month

15 Jan 2019 by Simon Scannell

Advent

Last year in December we released once a day a vulnerability affecting WordPress core or one of the most popular WordPress plugins, next to a critical persistent XSS in wordpress.org. This blogpost will summarize common mistakes developers make and the overall impact our advent calendar had on the WordPress community and the current state of WordPress security.

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Wormable Stored XSS on WordPress.org

24 Dec 2018 by Karim El Ouerghemmi
WordPress.org Stored XSS

Finding a critical vulnerability in one popular WordPress plugin and exploiting it in the wild could allow attackers to easily hijack thousands to millions of websites. An example of this could be observed lately in the case of the popular plugin WP GDPR Compliance. One plugin thus represents a single point of failure for all the websites using it. However, in matters of risk to the WordPress ecosystem, there is something more outreaching than the security of popular plugins: the security of WordPress.org. In this blog post, we investigate a critical stored XSS vulnerability on the WordPress.org website we have reported to the WordPress security team in May of this year.

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WordPress Privilege Escalation through Post Types

17 Dec 2018 by Simon Scannell
WooCommerce Object Injection

A logic flaw in the way WordPress created blog posts allowed attackers to access features only administrators were supposed to have. This lead to a Stored XSS and Object Injection in the WordPress core and more severe vulnerabilities in WordPress’s most popular plugins Contact Form 7 and Jetpack.

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