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Think Like a Hacker Episode 107

Episode 107: Two Plugin Vulnerabilities Target File Upload Capabilities

The Wordfence Threat intelligence team finds vulnerabilities in two plugins, the User Profile Picture plugin and the WooCommerce Upload Files plugin. WordPress 5.7 is set to release on Tuesday, March 9 with numerous enhancements for the block editor, a new robots.txt API, and a stay of execution on jQuery-migrate. A zero day affecting Microsoft Exchange …
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Top Five Attacking IPs

Top Five Attacking IPs This Month: Their Locations May Not Be Where You Think

At Wordfence, we see large amounts of threat actor data, and often that data tells unexpected stories. Taking a look at just the top five attacking IP addresses over a 30 day period, you might be surprised to find out where these attacks are originating, and what they are doing. When most people hear about …
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Critical Authentication Bypass Vulnerability Patched in SiteGround Security Plugin

On March 10, 2022 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “SiteGround Security”, a WordPress plugin that is installed on over 400,000 sites. This flaw makes it possible for attackers to gain administrative user access on vulnerable sites when two-factor authentication (2FA) is enabled but not …
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Reflected Cross-Site Scripting Vulnerability Patched in WordPress Profile Builder Plugin

On January 4, 2022 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “Profile Builder – User Profile & User Registration Forms”, a WordPress plugin that is installed on over 50,000 WordPress websites. This vulnerability makes it possible for an unauthenticated attacker to craft a request that contains …
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1.6 Million WordPress Sites Hit With 13.7 Million Attacks In 36 Hours From 16,000 IPs

Today, on December 9, 2021, our Threat Intelligence team noticed a drastic uptick in attacks targeting vulnerabilities that make it possible for attackers to update arbitrary options on vulnerable sites. This led us into an investigation which uncovered an active attack targeting over a million WordPress sites. Over the past 36 hours, the Wordfence network …
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Terms of Use Violation

Wordfence is used by millions of free and paid customers around the world to secure their WordPress websites. We serve a broad range of customers across the globe, from diverse cultures, with diverse backgrounds, and who have diverse political views. As an organization, Defiant, the company that makes Wordfence, believes that everyone has the right …
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WordPress Malware Camouflaged As Code

In today’s post we discuss emerging techniques that attackers are using to hide the presence of malware. In the example we discuss below, the attacker’s goal is to make everything look routine to an analyst so that they do not dig deeper and discover the presence of malware and what it is doing. We describe …
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Vulnerability Advisory Feature

Vulnerability Advisories

Wordfence is authorized by the Common Vulnerabilities and Exposures (CVE®) Program as a CNA, or CVE Numbering Authority. As a CNA, Wordfence assigns CVE IDs for new vulnerabilities in WordPress Core, WordPress Plugins and WordPress Themes. Assigned CVE IDs and the vulnerability details are published below. For more information about submitting vulnerabilities to Wordfence for…

Easily Exploitable Critical Vulnerabilities Patched in ProfilePress Plugin

On May 27, 2021, the Wordfence Threat Intelligence team initiated the responsible disclosure process for several vulnerabilities that were discovered in ProfilePress, formerly WP User Avatar, a WordPress plugin installed on over 400,000 sites. These flaws made it possible for an attacker to upload arbitrary files to a vulnerable site and register as an administrator …
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Service Vulnerabilities: Shared Hosting Symlink Security Issue Still Widely Exploited on Unpatched Servers

The Wordfence site cleaning team helps numerous customers recover from malware infections and site intrusions. While doing so, Wordfence Security Analysts perform a detailed forensic investigation in order to determine how the site was compromised by attackers. In a set of recent cases, we were able to identify a service vulnerability allowing malicious attackers to …
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