Results for Zhouyuan Yang

Threat Research

Multiple Plone Cross-Site Scripting Vulnerabilities

Plone is a free and open source content management system, and is ranked among the top 2% of all open source projects worldwide. More than 350 solution providers in more than 100 countries currently support it. The project has been actively developed since 2001, is available in more than 40 languages, and has the best security track record of any major CMS. The users (https://plone.com/about/they-use-plone) include the Federal Bureau of Investigation (FBI), the Central Intelligence Agency (CIA), the Intellectual Property Rights Center, and so on. Earlier...

By Zhouyuan YangDecember 05, 2017

Threat Research

Incomplete Patch: More Joomla! Core XSS Vulnerabilities Are Found

Joomla! is one of the world's most popular content management systems (CMS). It enables users to build Web sites and powerful online applications. More than 3 percent of Web sites are running Joomla!, and it accounts for more than 9 percent of CMS market share. As of July 2017, Joomla! has been downloaded over 82 million times. Over 7,800 free and commercial extensions are available from the official Joomla! Extension Directory, and more are available from other sources. In my last blog, I discovered 2 Cross-Site Scripting (XSS) vulnerabilities...

By Zhouyuan YangJuly 12, 2017

Threat Research

Multiple Joomla! Core XSS Vulnerabilities Are Discovered

Joomla! is one of the world's most popular content management system (CMS) solutions. It enables users to build custom Web sites and powerful online applications. More than 3 percent of Web sites are running Joomla!, and it accounts for more than 9 percent of CMS market share. As of November 2016, Joomla! had been downloaded over 78 million times. Over 7,800 free and commercial extensions are also currently available from the official Joomla! Extension Directory, and more are available from other sources. This year, as a FortiGuard researcher...

By Zhouyuan YangMay 04, 2017

Threat Research

Analysis of PHPMailer Remote Code Execution Vulnerability (CVE-2016-10033)

PHP is an open source, general-purpose scripting language used for web development that can also be embedded into HTML. It has over 9 million users, and is used by many popular tools, such as WordPress, Drupal, Joomla!, and so on. This week, a high-level security update was released to fix a remote code execution vulnerability (CVE-2016-10033) in PHPMailer, which is an open source PHP library for sending emails from PHP websites. This critical vulnerability is caused by class.phpmailer.php incorrectly processing user requests. As a result, remote...

By Zhouyuan YangJanuary 05, 2017

Threat Research

WooCommerce Tax Rates Cross-Site Scripting Vulnerability

WooCommerce is a free eCommerce plugin for WordPress. It has been downloaded over 1 million times and over 30% of all online stores are now powered by WooCommerce. I recently discovered that WooCommerce is vulnerable to a cross-site scripting (XSS) attack. This XSS vulnerability is caused because the WooCommerce tax rates setting incorrectly processes user-supplied data. Remote attackers are tricking WooCommerce administrators into uploading a malicious CSV file that claims to provide required tax rate data for a particular country or region..

By Zhouyuan YangDecember 16, 2016