Filter by tag: php

CTF Writeup: Complex Drupal POP Chain

10 min read 29 Jan 2019 by Simon Scannell
A recent Capture-The-Flag tournament hosted by Insomni’hack challenged participants to craft an attack payload for Drupal 7. This blog post will demonstrate our solution for a PHP Object Injection with a complex POP gadget chain.

Learnings from WordPress Security Month

9 min read 15 Jan 2019 by Simon Scannell
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.

Wormable Stored XSS on WordPress.org

10 min read 24 Dec 2018 by Karim El Ouerghemmi
The WordPress.org website holds the repositories for all plugins and themes that are used by all WordPress sites. Furthermore, it manages the accounts that developers use to edit the code of their themes and plugins. 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 2018.

WordPress Privilege Escalation through Post Types

13 min read 17 Dec 2018 by Simon Scannell
A logic flaw in the way WordPress created blog posts allowed attackers to access features only administrators were supposed to have (CVE-2018-20152). 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.

PHP Security Advent Calendar 2018

1 min read 27 Nov 2018 by Johannes Dahse
The holiday season is coming up again and it’s time for some security fun. For the third time in a row, we are proud to announce our PHP security advent calendar. This year, we will analyze 24 exciting security bugs that we detected in the most widespread WordPress plugins.