Wordfence Research and News
Reflected XSS in Header Footer Code Manager
On February 15, 2022, the Wordfence Threat Intelligence team responsibly disclosed a reflected Cross-Site Scripting (XSS) vulnerability in Header Footer Code Manager, a WordPress plugin with over 300,000 installations. The plugin publisher quickly acknowledged our initial contact and we sent the full disclosure details the same day, on February 15, 2022. A patched version, 1.1.17, …
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Vulnerability in UpdraftPlus Allowed Subscribers to Download Sensitive Backups
Update: a previous version of this article indicated that an attacker would need to begin their attack when a backup was in progress, and would need to guess the appropriate timestamp to download a backup. Since the article was originally published, we have found that it is possible to obtain a full log containing a …
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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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Unauthenticated SQL Injection Vulnerability Patched in WordPress Statistics Plugin
On February 7, 2022, Security Researcher Cyku Hong from DEVCORE reported a vulnerability to us that they discovered in WP Statistics, a WordPress plugin installed on over 600,000 sites. This vulnerability made it possible for unauthenticated attackers to execute arbitrary SQL queries by appending them to an existing SQL query. This could be used to …
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Critical Vulnerabilities in PHP Everywhere Allow Remote Code Execution
On January 4, 2022, the Wordfence Threat Intelligence team began the responsible disclosure process for several Remote Code Execution vulnerabilities in PHP Everywhere, a WordPress plugin installed on over 30,000 websites. One of these vulnerabilities allowed any authenticated user of any level, even subscribers and customers, to execute code on a site with the plugin …
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Unauthenticated XSS Vulnerability Patched in HTML Email Template Designer Plugin
On December 23, 2021 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “WordPress Email Template Designer – WP HTML Mail”, a WordPress plugin that is installed on over 20,000 sites. This flaw made it possible for an unauthenticated attacker to inject malicious JavaScript that would execute whenever …
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84,000 WordPress Sites Affected by Three Plugins With The Same Vulnerability
On November 5, 2021 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “Login/Signup Popup”, a WordPress plugin that is installed on over 20,000 sites. A few days later we discovered the same vulnerability present in two additional plugins developed by the same author: “Side Cart Woocommerce (Ajax)”, …
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WordPress 5.8.3 Security Release
On January 6, 2022, the WordPress core team released WordPress version 5.8.3, which contains security patches for 4 high-severity vulnerabilities. These patches were backported to every version of WordPress since 3.7. WordPress has supported automatic core updates for security releases since WordPress 3.7, and the vast majority of WordPress sites will have received these patches …
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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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Authentication Bypass Vulnerability Patched in User Registration Plugin
Note: To receive disclosures like this in your inbox the moment they’re published, you can subscribe to our WordPress Security Mailing List. On September 16, 2021 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “RegistrationMagic – Custom Registration Forms, User Registration and User Login”, a WordPress plugin …
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