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Marc-Alexandre Montpas

50 posts
Marc-Alexandre Montpas is Sucuri’s Senior Security Analyst who joined the company in 2014. Marc’s main responsibilities include reversing security patches and scavenging vulnerabilities, old and new. His professional experience covers eight years of finding bugs in open-source software. When Marc isn’t breaking things, you might find him participating in a hacking CTF competition. Connect with him on Twitter.
  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory: Stored XSS in Jetpack

  • Marc-Alexandre Montpas
  • May 27, 2016
During regular research audits for our Sucuri Firewall (Cloud WAF), we discovered a stored XSS vulnerability affecting the WordPress Jetpack plugin, currently installed on more…
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  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory: Stored XSS in bbPress

  • Marc-Alexandre Montpas
  • May 3, 2016
During regular research audits of our Sucuri Firewall, we discovered a Stored XSS vulnerability affecting the bbPress plugin for WordPress which is currently installed on…
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  • Magento Security
  • Security Advisory
  • Vulnerability Disclosure

Security Advisory: Stored XSS in Magento

  • Marc-Alexandre Montpas
  • January 22, 2016
During our regular research audits for our Cloud-based WAF, we discovered a Stored XSS vulnerability affecting the Magento platform that can be easily exploited remotely.…
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  • Joomla Security
  • Vulnerability Disclosure

Vulnerability Details: Joomla! Remote Code Execution

  • Marc-Alexandre Montpas
  • December 15, 2015
The Joomla! team released a new version of Joomla! CMS yesterday to patch a serious and easy to exploit remote code execution vulnerability that affected…
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  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory: Stored XSS in Akismet WordPress Plugin

  • Marc-Alexandre Montpas
  • October 14, 2015
During a routine audit for our WAF, we discovered a critical stored XSS vulnerability affecting Akismet, a popular WordPress plugin deployed by millions of installs.
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  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory: Stored XSS in Jetpack

  • Marc-Alexandre Montpas
  • October 1, 2015
During a routine audit for our WAF, we discovered a critical stored XSS affecting the Jetpack WordPress plugin, one of the most popular plugins in…
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  • Vulnerability Disclosure
  • WordPress Security

Persistent XSS Vulnerability in WordPress Explained

  • Marc-Alexandre Montpas
  • August 11, 2015
Last week the WordPress team released a patch that fixed 6 security vulnerabilities. Of the six, you’ll find one  that we identified a few months…
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Security Advisory: Object Injection Vulnerability in WooCommerce

  • Marc-Alexandre Montpas
  • June 10, 2015
During a routine audit for our WAF, we discovered a dangerous Object Injection vulnerability in WooCommerce which could, in certain contexts, be used by an…
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Critical Persistent XSS 0day in WordPress

  • Marc-Alexandre Montpas
  • April 27, 2015
*Update 2015-04-27*: A patch has been released and made available by the WordPress Core Team in version 4.2.1 – Please update immediately. Yes, you’ve read…
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  • Ecommerce Security
  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory: Persistent XSS in WP-Super-Cache

  • Marc-Alexandre Montpas
  • April 7, 2015
During a routine audit for our Website Firewall (WAF), we discovered a dangerous persistent XSS vulnerability affecting the very popular WP-Super-Cache plugin (more than a…
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  • Security Advisory
  • Vulnerability Disclosure
  • WordPress Security

Security Advisory – WP-Slimstat 3.9.5 and Lower

  • Marc-Alexandre Montpas
  • February 24, 2015
WP-Slimstat users should update as soon as possible! During a routine audit for our WAF, we discovered a security bug that an attacker could, by…
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