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Archive For: Security Tips

Website Takeover Campaign Takes Advantage of Unauthenticated Stored Cross-Site Scripting Vulnerability in Popup Builder Plugin

On December 11, 2023, we added an Unauthenticated Stored XSS vulnerability in the Popup Builder WordPress plugin to our Wordfence Intelligence Vulnerability Database. This vulnerability, which was originally reported by WPScan, allows an unauthenticated attacker to inject arbitrary JavaScript that will be executed whenever a user accesses an injected page. Later on January 10th, 2024... Read More
 

Wordfence Intelligence Weekly WordPress Vulnerability Report (January 1, 2023 to January 7, 2023)

Wordfence just launched its bug bounty program. For the first 6 months, all awarded bounties receive a 10% bonus. View the announcement to learn more now! Last week, there were 85 vulnerabilities disclosed in 74 WordPress Plugins and 2 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and there were 39... Read More
 

Thousands of Sites with Popup Builder Compromised by Balada Injector

On December 11, 2023 WPScan published Marc Montpas’ research on the stored XSS vulnerability in the popular Popup Builder plugin (200,000+ active installation) that was fixed in version 4.2.3. A couple of days later, on December 13th, the Balada Injector campaign started infecting websites with older versions of the Popup Builder. The attack used a... Read More
 

Type Juggling Leads to Two Vulnerabilities in POST SMTP Mailer WordPress Plugin

On December 14th, 2023, during our Bug Bounty Program Holiday Bug Extravaganza, we received a submission for an Authorization Bypass vulnerability in POST SMTP Mailer, a WordPress plugin with over 300,000+ active installations. This vulnerability makes it possible for unauthenticated threat actors to reset the API key used to authenticate to the mailer and view... Read More
 

What is the Principle of Least Privilege?

If you own a website and collaborate with other people, the Principle of Least Privilege (PoLP) is a crucial security concept which has applications and benefits to strengthen your website security posture. Let’s dive in! Contents: Definition PoLP & Website Security Example of Principle of Least Privilege Default WordPress User Roles How PoLP Affects Websites... Read More
 

Wordfence Intelligence Weekly WordPress Vulnerability Report (December 18, 2023 to December 31, 2023)

Wordfence just launched its bug bounty program. For the first 6 months, all awarded bounties receive a 10% bonus. View the announcement to learn more now! Over the last two weeks, there were 263 vulnerabilities disclosed in 217 WordPress Plugins and 3 WordPress themes that have been added to the Wordfence Intelligence Vulnerability Database, and... Read More
 

WordPress Vulnerability & Patch Roundup December 2023

Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners on emerging threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this... Read More
 

New Guide: Broken Access Control

The complexity of modern websites exposes countless potential vulnerabilities to lurking attackers. One of the most underestimated threats? Broken Access Control (BAC). The risk lies within the very machinations of your website — the systems managing who can interact with what. When correctly set, they keep unauthorized users out; when broken… Well, let’s not give... Read More
 

The 2023 Wordfence Holiday Bug Extravaganza Reaches An Exciting Conclusion!

After an incredibly successful few weeks, the Wordfence Holiday Bug Extravaganza came to a close yesterday. We’d like to sincerely thank everyone who spent time researching, finding, and submitting vulnerabilities. Your efforts have helped to make the WordPress community and the web safer. Many talented and dedicated researchers submitted bugs and vulnerabilities, some of them... Read More
 
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