Common WordPress Vulnerabilities and Prevention Through Secure Coding Best Practices

Common WordPress Vulnerabilities and Prevention Through Secure Coding Best Practices

WordPress has experienced exponential growth in the past several years and now holds over 42% of the CMS market share for all major sites. There are over 50,000 plugins available to download in the WordPress repository. That does not include the thousands of premium or open source plugins available outside of the repository, along with…

Episode 124: PrintNightmare 0Day Exploit Accidentally Leaked Online

Episode 124: PrintNightmare 0Day Exploit Accidentally Leaked Online

Security researchers accidentally leaked zero-day exploit code for a new Windows bug, now called PrintNightmare, while easily exploitable vulnerabilities in the ProfilePress plugin, previously called WP User Avatar, were patched quickly. An unprotected cloud database containing over 814 million DreamHost user records was found online. Google Chrome is getting a HTTPS-only feature in an upcoming…

Easily Exploitable Critical Vulnerabilities Patched in ProfilePress Plugin

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…

Episode 123: Over 30 Million Dell Devices at Risk for Remote BIOS Attacks

Episode 123: Over 30 Million Dell Devices at Risk for Remote BIOS Attacks

Over 30 million Dell devices are at risk for remote BIOS attacks due to four separate security bugs, which can have far reaching effects for enterprise organizations heavily invested in Dell devices. VMware Carbon Black App Control has been updated this week to fix a critical-severity vulnerability that allows authentication bypass. Antivirus creator John McAffee…

Episode 122: Largest Password Dump in History Fuels Credential Stuffing Extravaganza

Episode 122: Largest Password Dump in History Fuels Credential Stuffing Extravaganza

Sites running Jetpack are being infected via compromised WordPress.com credentials. The largest password dump ever with 8.4 billion passwords is used in credential stuffing attacks. Wordfence Threat Intelligence discloses new plugin vulnerabilities as well as a vulnerability at tsoHost. Data Breaches impact VW and EA, REvil compromises a nuclear weapons contractor, and TurboTax accounts are…

Service Vulnerabilities: Shared Hosting Symlink Security Issue Still Widely Exploited on Unpatched Servers

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…

Cross-Site Request Forgery Patched in WP Fluent Forms

Cross-Site Request Forgery Patched in WP Fluent Forms

On March 2, 2021, the Wordfence Threat Intelligence team responsibly disclosed a Cross-Site Request Forgery(CSRF) vulnerability in WP Fluent Forms, a WordPress plugin installed on over 80,000 sites. This vulnerability also allowed a stored Cross-Site Scripting(XSS) attack which, if successfully exploited, could be used to take over a site. We reached out to the plugin…

High Severity Vulnerability Patched in WooCommerce Stock Manager Plugin

High Severity Vulnerability Patched in WooCommerce Stock Manager Plugin

On May 21, 2021, the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability that we discovered in WooCommerce Stock Manager, a WordPress plugin installed on over 30,000 sites. This flaw made it possible for an attacker to upload arbitrary files to a vulnerable site and achieve remote code execution, as long…

Episode 121: Wordfence is Now a CVE Numbering Authority (CNA)

Episode 121: Wordfence is Now a CVE Numbering Authority (CNA)

Wordfence is now a CVE Numbering Authority, or a CNA. As a CNA, Wordfence can now assign CVE IDs for new vulnerabilities in WordPress Core, WordPress Plugins and WordPress Themes. An outage at Fastly takes down major websites including Reddit, Twitch, Amazon, and many others. Microsoft patches numerous Windows 0-day vulnerabilities, and Google patches a…

Malicious Attack Campaign Targeting Jetpack Users Reusing Passwords

Malicious Attack Campaign Targeting Jetpack Users Reusing Passwords

The Wordfence Threat Intelligence and Site Cleaning teams have been tracking a malware campaign that redirects all site visitors to malvertising domains, while attempting to keep site administrators unaware of the infection. Since June 1, 2021, the number of sites we are tracking that have been infected with this malware has more than doubled, and…