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Category Archive: Vulnerabilities

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High Severity Vulnerability Patched in Child Theme Creator by Orbisius

This entry was posted in Research, Vulnerabilities, WordPress Security on October 14, 2020 by Chloe Chamberland   0 Replies

On September 9, 2020, our Threat Intelligence team discovered a vulnerability in Child Theme Creator by Orbisius, a WordPress plugin installed on over 30,000 sites. This flaw gave attackers the ability to forge requests on behalf of an administrator in order to modify arbitrary theme files and create new PHP files, which could allow an …
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Vulnerability Exposes Over 4 Million Sites Using WPBakery

This entry was posted in Research, Vulnerabilities, WordPress Security on October 07, 2020 by Chloe Chamberland   22 Replies

On July 27th, our Threat Intelligence team discovered a vulnerability in WPBakery, a WordPress plugin installed on over 4.3 million sites. This flaw made it possible for authenticated attackers with contributor-level or above permissions to inject malicious JavaScript in posts. We initially reached out to the plugin’s team on July 28, 2020 through their support …
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High Severity Vulnerabilities in Post Grid and Team Showcase Plugins

This entry was posted in Research, Vulnerabilities, WordPress Security on October 05, 2020 by Ram Gall   0 Replies

On September 14, 2020, our Threat Intelligence team discovered two high severity vulnerabilities in Post Grid, a WordPress plugin with over 60,000 installations. While investigating one of these vulnerabilities, we discovered that almost identical vulnerabilities were also present in Team Showcase, a separate plugin by the same author with over 6,000 installations. We initially reached …
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Critical Vulnerabilities Patched in XCloner Backup and Restore Plugin

This entry was posted in Research, Vulnerabilities, WordPress Security on September 22, 2020 by Chloe Chamberland   0 Replies

On August 14, our Threat Intelligence team discovered several vulnerabilities present in XCloner Backup and Restore, a WordPress plugin installed on over 30,000 sites. This flaw gave authenticated attackers, with subscriber-level or above capabilities, the ability to modify arbitrary files, including PHP files. Doing so would allow an attacker to achieve remote code execution on …
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High-Severity Vulnerabilities Patched in Discount Rules for WooCommerce

This entry was posted in Research, Vulnerabilities, WordPress Security on September 17, 2020 by Ram Gall   2 Replies

On August 20, 2020, the Wordfence Threat Intelligence team was made aware of several vulnerabilities that had been patched in Discount Rules for WooCommerce, a WordPress plugin installed on over 40,000 sites. We released a firewall rule to protect against these vulnerabilities the same day. During our investigation, we also discovered a separate set of …
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Attackers Fight for Control of Sites Targeted in File Manager Vulnerability

This entry was posted in Research, Vulnerabilities, WordPress Security on September 10, 2020 by Ram Gall   5 Replies

Last week, we covered a vulnerability in the File Manager plugin installed on over 700,000 WordPress sites. By Friday, September 4, 2020, we recorded attacks on over 1.7 million sites, and by today, September 10, 2020 the total number of sites attacked has increased to over 2.6 million. We’ve seen evidence of multiple threat actors …
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Millions of Sites Targeted in File Manager Vulnerability Attacks

This entry was posted in Vulnerabilities, WordPress Security on September 04, 2020 by Ram Gall   15 Replies

The Wordfence Threat Intelligence team is seeing a dramatic increase in attacks targeting the recent 0-day in the WordPress File Manager plugin. This plugin is installed on over 700,000 WordPress websites, and we estimate that 37.4% or 261,800 websites are still running vulnerable versions of this plugin at the time of this publication. Attacks are …
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700,000 WordPress Users Affected by Zero-Day Vulnerability in File Manager Plugin

This entry was posted in Research, Vulnerabilities, WordPress Security on September 01, 2020 by Chloe Chamberland   16 Replies

This morning, on September 1, 2020, the Wordfence Threat Intelligence team was alerted to the presence of a vulnerability being actively exploited in File Manager, a WordPress plugin with over 700,000 active installations. This vulnerability allowed unauthenticated users to execute commands and upload malicious files on a target site. A patch was released this morning …
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High-Severity Vulnerability Patched in Advanced Access Manager

This entry was posted in Research, Vulnerabilities, WordPress Security on August 20, 2020 by Ram Gall   2 Replies

On August 13, 2020, the Wordfence Threat Intelligence team finished investigating two vulnerabilities in Advanced Access Manager, a WordPress plugin with over 100,000 installations, including a high-severity Authorization Bypass vulnerability that could lead to privilege escalation and site takeover. We reached out to the plugin’s author the next day, on August 14, 2020, and received …
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Critical Vulnerabilities Patched in Quiz and Survey Master Plugin

This entry was posted in Research, Vulnerabilities, WordPress Security on August 13, 2020 by Chloe Chamberland   1 Reply

On July 17, 2020, our Threat Intelligence team discovered two vulnerabilities in Quiz and Survey Master (QSM), a WordPress plugin installed on over 30,000 sites. These flaws made it possible for unauthenticated attackers to upload arbitrary files and achieve remote code execution, as well as delete arbitrary files like a site’s wp-config.php file which could …
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