Filter by tag: remote code execution

MyBB <= 1.8.20: From Stored XSS to RCE

8 min read 11 Jun 2019 by Simon Scannell
This blog post shows how an attacker can take over any board hosted with MyBB prior to version 1.8.21 by sending a malicious private message to an administrator or by creating a malicious post. We use a chain of two security vulnerabilities detected in the code.

WordPress 5.1 CSRF to Remote Code Execution

9 min read 13 Mar 2019 by Simon Scannell
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 (CVE-2019-9787).

WordPress 5.0.0 Remote Code Execution

15 min read 19 Feb 2019 by Simon Scannell
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 (CVE-2019-8943). The vulnerability remained uncovered in the WordPress core for over 6 years.

osClass 3.6.1: Remote Code Execution via Image File

10 min read 19 Dec 2016 by Robin Peraglie
In todays calendar gift, we present another beautiful chain of vulnerabilities which, in the end, allows an attacker to remotely execute arbitrary PHP code. This time, an attacker can smuggle his PHP payload through a valid image file. The issues were detected by RIPS in the open source marketplace software osClass 3.6.1 used for creating classifieds sites.