Several Critical Vulnerabilities including Privilege Escalation, Authentication Bypass, and More Patched in UserPro WordPress Plugin

On May 1, 2023, the Wordfence Threat Intelligence team began the responsible disclosure process for multiple high and critical severity vulnerabilities we discovered in Kirotech’s UserPro plugin, which is actively installed on more than 20,000 WordPress websites. Wordfence Premium, Wordfence Care...

Wordfence Intelligence Weekly WordPress Vulnerability Report (November 6, 2023 to November 12, 2023)

Wordfence just launched its bug bounty program. Over the next 6 months, all awarded bounties receive a 10% bonus. View the announcement to learn more now! Please note there was a minor error in the heading of the email, and this report only runs from November 6th to November 12th. Last week, ther...

Fostering Innovation in Web Security

Ive always created growth by focusing on free. It started back in 2003 when I launched WorkZoo in London. WorkZoo was a job search engine that ended up being one of Time Magazines top 50 websites of 2005. These days we take free search capability for granted, but 20 years ago, before Nginx came...

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 30, 2023 to November 5, 2023)

Wordfence just launched its bug bounty program. Over the next 6 months, all awarded bounties receive a 10% bonus. View the announcement to learn more now! Last week, there were 79 vulnerabilities disclosed in 64 WordPress Plugins and no WordPress themes that have been added to the Wordfence...

Wordfence Launches Bug Bounty Program to Fund WordPress Security Research and Showcase Researchers

At Defiant Inc and Wordfence, our mission is to Secure the Web. A critical component of creating and maintaining a secure online community is the research that reveals vulnerabilities in software. Without this research, only malicious hackers would find vulnerabilities, and they would quietly...

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 23, 2023 to October 29, 2023)

Last week, there were 109 vulnerabilities disclosed in 102 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 37 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilitie...

Know Your Malware Part Two – Hacky Obfuscation Techniques

In the first post in this series, we covered common PHP encoding techniques and how they’re used by malware to hide from security analysts and scanners. In today’s post, we’re going to dive a little bit deeper into other obfuscation techniques that make use of other features available in PHP...

Announcing Vulnerability Scanning in Wordfence CLI 2.0.1 “Voodoo Child”

Note: If youre a WordPress user, we recommend the Wordfence Security Plugin which provides a robust and complete set of security controls for WordPress websites. If you host WordPress servers and need high performance malware and vulnerability scanning on the command line, read on! Our mission at...

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 16, 2023 to October 22, 2023)

Last week, there were 109 vulnerabilities disclosed in 95 WordPress Plugins and 1 WordPress theme that have been added to the Wordfence Intelligence Vulnerability Database, and there were 39 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

Several Critical Vulnerabilities Patched in AI ChatBot Plugin for WordPress

On September 28, 2023, the Wordfence Threat Intelligence team initiated the responsible disclosure process for multiple vulnerabilities in AI ChatBot, a WordPress plugin with over 4,000 active installations. After making our initial contact attempt on September 28th, 2023, we received a response ...

Wordfence Reviews and Where to Find Them

Just a quick note. If youre looking for objective Wordfence reviews, you can find them on the official WordPress plugin repository in the Wordfence reviews section which is linked to from the Wordfence entry in the official WordPress repository. The Wordfence plugin is available in the repository...

4 Million WordPress Sites affected by Stored Cross-Site Scripting Vulnerability in LiteSpeed Cache Plugin

On August 14, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for a stored Cross-Site Scripting XSS vulnerability in LiteSpeed Cache plugin, which is actively installed on more than 4,000,000 WordPress websites, making it the most popular cache...

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 9, 2023 to October 15, 2023)

Last week, there were 103 vulnerabilities disclosed in 85 WordPress Plugins and no WordPress themes, with 7 of those being in WordPress Core, that have been added to the Wordfence Intelligence Vulnerability Database, and there were 46 Vulnerability Researchers that contributed to WordPress Securi...

PSA: Critical Unauthenticated Arbitrary File Upload Vulnerability in Royal Elementor Addons and Templates Being Actively Exploited

Update: Wordfence has released a malware detection signature for wp.ph$p to Wordfence Premium, Wordfence Care, Wordfence Response, and the paid tiers of Wordfence CLI as of Monday, October 16, 2023. Today, on October 13, 2023, the Wordfence Threat Intelligence Team became aware of a vulnerability...

WordPress 6.3.2 Security Release – What You Need to Know

WordPress Core 6.3.2 was released today, on October 12, 2023. It includes a number of security fixes and additional hardening against commonly exploited vulnerabilities. While all of the vulnerabilities are of Medium severity, several of them are impactful enough to potentially allow site takeove...

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 2, 2023 to October 8, 2023)

Last week, there were 92 vulnerabilities disclosed in 88 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 37 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Backdoor Masquerading as Legitimate Plugin

As part of our product lineup, we offer security monitoring and malware removal services to our Wordfence Care and Response customers. In the event of a security incident, our incident response team will investigate the root cause, find and remove malware from your site, and help with other...

Wordfence Intelligence Weekly WordPress Vulnerability Report (September 25, 2023 to October 1, 2023)

Last week, there were 90 vulnerabilities disclosed in 68 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 31 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Know your Malware – A Beginner’s Guide to Encoding Techniques Used to Obfuscate Malware

With the launch of Wordfence CLI, our high performance security scanner that can detect the vast majority of PHP malware targeting WordPress, Wordfence continues to emphasize the importance of malware detection and remediation. Malware targeting WordPress uses a variety of obfuscation techniques ...

Wordfence Intelligence Weekly WordPress Vulnerability Report (September 18, 2023 to September 24, 2023)

Last week, there were 42 vulnerabilities disclosed in 37 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 10 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Wordfence Intelligence Weekly WordPress Vulnerability Report (September 11, 2023 to September 17, 2023)

Last week, there were 55 vulnerabilities disclosed in 46 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 15 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Two PHP Object Injection Vulnerabilities Fixed in Essential Blocks

On August 18, 2023, the Wordfence Threat Intelligence team initiated the responsible disclosure process for two PHP Object Injection vulnerabilities in the Essential Blocks plugin for WordPress, a plugin with over 100,000 installations. We received a response three days later and sent over our fu...

Wordfence Intelligence Weekly WordPress Vulnerability Report (September 4, 2023 to September 10, 2023)

Last week, there were 107 vulnerabilities disclosed in 89 WordPress Plugins and 5 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 36 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Malware Scanning: An Essential Layer of Website Security

Wordfence recently launched Wordfence CLI, a high performance command line malware scanner, which makes use of our extensive set of malware detection signatures to rapidly scan file systems for infections. In recent years, the WordPress community has seen a shift in emphasis towards prevention,...

Over 100,000 WordPress Websites Affected by XSS and SQLi Vulnerabilities in Slimstat Analytics Plugin

On August 24, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for a stored Cross-Site Scripting XSS and a Blind SQL Injection vulnerability in the Slimstat Analytics plugin, which is actively installed on more than 100,000 WordPress websites. T...

Wordfence Intelligence Weekly WordPress Vulnerability Report (August 28, 2023 to September 3, 2023)

Last week, there were 64 vulnerabilities disclosed in 61 WordPress Plugins and 2 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 32 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

Stored Cross-Site Scripting Vulnerability Patched in Newsletter WordPress Plugin

On August 16, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for a stored Cross-Site Scripting XSS vulnerability in the Newsletter plugin, which is actively installed on more than 300,000 WordPress websites. The vulnerability enables threat...

Wordfence Intelligence Weekly WordPress Vulnerability Report (August 21, 2023 to August 27, 2023)

Last week, there were 43 vulnerabilities disclosed in 38 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 23 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Introducing Free Wordfence Intelligence WordPress Vulnerability Webhook Notifications!

We’re incredibly excited to announce that we have launched a webhook integration for vulnerabilities as part of Wordfence Intelligence, which enables users to stay on top of the latest vulnerabilities being added to the Wordfence Intelligence WordPress Vulnerability database, all completely for...

Introducing Wordfence CLI: A High Performance Malware Scanner Built for the Command Line

Today, we are incredibly excited to announce the launch of Wordfence CLI: an open source, high performance malware scanner built for the command-line. With Wordfence CLI you can detect malware and other indicators of compromise on a host system by running an extremely fast scanner that is at home...

Wordfence Intelligence Weekly WordPress Vulnerability Report (August 14, 2023 to August 20, 2023)

Last week, there were 64 vulnerabilities disclosed in 67 WordPress Plugins and 10 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 37 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

Critical Privilege Escalation Vulnerability in Charitable WordPress Plugin Affects Over 10,000 sites

On August 10, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for a Privilege Escalation vulnerability in the Donation Forms by Charitable plugin, which is actively installed on more than 10,000 WordPress websites. This vulnerability makes it...

Wordfence Intelligence Weekly WordPress Vulnerability Report (August 7, 2023 to August 13, 2023)

Last week, there were 86 vulnerabilities disclosed in 68 WordPress Plugins and 3 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 36 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

Threat Actors Using Obfuscation in Attempt to Evade Detection

As part of our product lineup, we offer security monitoring and malware removal services to our Wordfence Care and Response customers. In the event of a security incident, our incident response team will investigate the root cause, find and remove malware from your site, and help with other...

Wordfence Intelligence Weekly WordPress Vulnerability Report (July 31, 2023 to August 6, 2023)

Last week, there were 29 vulnerabilities disclosed in 24 WordPress Plugins and no WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 18 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities ...

weDevs Addresses Privilege Escalation Vulnerability in WP Project Manager WordPress Plugin

On July 9, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for a Privilege Escalation vulnerability in weDevs’s WP Project Manager plugin, which is actively installed on more than 10,000 WordPress websites. This vulnerability makes it possible...

Demystifying the WordPress Vulnerability Landscape: 2023 Mid-Year Wordfence Intelligence WordPress Vulnerability Review Leveraging ChatGPT

In the first 6 months of 2023, our team has already added 2,4711 individual vulnerability records to the Wordfence Intelligence WordPress Vulnerability Database. These vulnerabilities affected 1,6802 WordPress software components. This means we have already surpassed the total number of...

Wordfence Intelligence Weekly WordPress Vulnerability Report (July 24, 2023 to July 30, 2023)

Last week, there were 64 vulnerabilities disclosed in 66 WordPress Plugins and 3 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 32 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

WebToffee Addresses Authentication Bypass Vulnerability in Stripe Payment Plugin for WooCommerce WordPress Plugin

On June 8, 2023, our Wordfence Threat Intelligence team identified and began the responsible disclosure process for an Authentication Bypass vulnerability in WebToffee’s Stripe Payment Plugin for WooCommerce plugin, which is actively installed on more than 10,000 WordPress websites. This...

PSA: Wordfence Brand Being Actively Used in Phishing Campaigns

Earlier this week we became aware that malicious actors are using Wordfence brand image to run a phishing scam on WordPress and Wordfence users, posing as unknown login notifications from their own website while linking to a fake login page, clearly aiming to steal WordPress login credentials. If...

Wordfence Intelligence Weekly WordPress Vulnerability Report (July 17, 2023 to July 23, 2023)

Last week, there were 62 vulnerabilities disclosed in 1035 WordPress Plugins and 90 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 36 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilitie...

Wordfence Intelligence Weekly WordPress Vulnerability Report (July 10, 2023 to July 16, 2023)

Note: We accidentally sent out an email for this report with last weeks subject line. Due to the subject line not being very different week to week for this report, we opted to just leave it as is and not send a follow-up email. We apologize for this error on our part! Last week, there were 69...

“Never Assume Anything” – Unauthenticated Stored Cross-Site Scripting Vulnerability Exposed in 14 Email Logging Plugins

“Never Assume Anything” – that is the 4th Guiding Principle written in the Security section of the WordPress Common APIs Handbook for developers. When it comes to WordPress plugin security, assumptions can be dangerous. This became evident when the Wordfence Threat Intelligence team discovered an...

Massive Targeted Exploit Campaign Against WooCommerce Payments Underway

The Wordfence Threat Intelligence team has been monitoring an ongoing exploit campaign targeting a recently disclosed vulnerability in WooCommerce Payments, a plugin installed on over 600,000 sites. Large-scale attacks against the vulnerability, assigned CVE-2023-28121, began on Thursday, July 14...

Wordfence Intelligence Weekly WordPress Vulnerability Report (July 3, 2023 to July 9, 2023)

Last week, there were 61 vulnerabilities disclosed in 54 WordPress Plugins and 1 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 28 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

Interesting Arbitrary File Upload Vulnerability Patched in User Registration WordPress Plugin

On June 19, 2023, the Wordfence Threat Intelligence team identified and began the responsible disclosure process for an Arbitrary File Upload vulnerability in WPEverest’s User Registration plugin, which is actively installed on more than 60,000 WordPress websites. This vulnerability makes it...

Dissecting a Clever Malware Sample for Optimized Detection and Protection

As part of our product lineup, we offer security monitoring and malware removal services to our Wordfence Care and Response customers. In case of a security incident, our incident response team will investigate the root cause, find and remove malware from your site, and help with other...

Open-Source Projects Use the Wordfence Vulnerability Data Feed API and You Can Too!

Prior to joining the Wordfence Threat Intelligence team, I spent several years as a vulnerability analyst, responsible for collecting, analyzing, and curating every publicly disclosed vulnerability. This meant collecting vulnerability information from almost a hundred different, disparate sources...

Wordfence Intelligence Weekly WordPress Vulnerability Report (June 26, 2023 to July 2, 2023)

Last week, there were 66 vulnerabilities disclosed in 56 WordPress Plugins and 1 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 34 Vulnerability Researchers that contributed to WordPress Security last week. Review those vulnerabilities i...

PSA: Unpatched Critical Privilege Escalation Vulnerability in Ultimate Member Plugin Being Actively Exploited

Today, on June 29, 2023, the Wordfence Threat Intelligence Team became aware of an unpatched privilege escalation vulnerability being actively exploited in Ultimate Member, a WordPress plugin installed on over 200,000 sites, through our vulnerability changelog monitoring we do to ensure the...