WordPress Booking Calendar plugin <= 9.1 - Insecure Deserialization/PHP Object Injection vulnerability

Insecure Deserialization/PHP Object Injection vulnerability discovered by Ramuel Gall Wordfence in WordPress Booking Calendar plugin versions = 9.1. Solution Update the WordPress Booking Calendar plugin to the latest available version at least 9.1.1...

WordPress Elementor Website Builder plugin <= 3.6.2 - Arbitrary File Upload vulnerability

Arbitrary File Upload vulnerability discovered by Ramuel Gall Wordfence in WordPress Elementor Website Builder plugin versions = 3.6.2. Solution Update the WordPress Elementor Website Builder plugin to the latest available version at least 3.6.3...

Critical Authentication Bypass Vulnerability Patched in SiteGround Security Plugin

On March 10, 2022 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “SiteGround Security”, a WordPress plugin that is installed on over 400,000 sites. This flaw makes it possible for attackers to gain administrative user acces...

WordPress SiteGround Security plugin <= 1.2.5 - Authorization Weakness to Authentication Bypass via 2-Factor Authentication Back-up Codes vulnerability

Authorization Weakness to Authentication Bypass via 2-Factor Authentication Back-up Codes vulnerability discovered by Chloe Chamberland Wordfence in WordPress SiteGround Security plugin versions = 1.2.5. Solution Update the WordPress SiteGround Security plugin to the latest available version at...

Tatsu < 3.3.12 - Unauthenticated RCE

The plugin addcustomfont action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover,...

WordPress Core 5.9.0 / 5.9.1 Cross Site Scripting Vulnerability

Contributor+ Stored Cross Site Scripting Vulnerability Description: Contributor+ Stored XSS Affected Versions: WordPress Core 5.9.0-5.9.1 CVE ID: Pending CVSS Score: 8.0 High CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Fully Patched Version: 5.9.2 Researcher/s: Ben Bidner WordPress...

WordPress 5.9.2 Security Update Fixes XSS and Prototype Pollution Vulnerabilities

Last night, just after 6pm Pacific time, on Thursday March 10, 2022, the WordPress core team released WordPress version 5.9.2, which contains security patches for a high-severity vulnerability as well as two medium-severity issues. The high-severity issue affects version 5.9.0 and 5.9.1 and allow...

Ukraine Universities Hacked As Russian Invasion Started

Note: This article has been updated to reflect that the hosting provider "Njalla", which routed the malicious traffic involved in this attack, is based in Sweden, not in Finland, although IP geolocation data indicates that the specific server that the traffic transited may be based in Finland. We...

WordPress Photoswipe Masonry Gallery 1.2.14 Cross Site Scripting

On November 11, 2021 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “Photoswipe Masonry Gallery”, a WordPress plugin that is installed on over 10,000 sites. This flaw makes it possible for an authenticated attacker to injec...

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 fu...

Critical Flaw Uncovered in WordPress Backup Plugin Used by Over 3 Million Sites

Patches have been issued to contain a "severe" security vulnerability in UpdraftPlus, a WordPress plugin with over three million installations, that can be weaponized to download the site's private data using an account on the vulnerable sites. "All versions of UpdraftPlus from March 2019 onwards...

Friday Fun: From Idea to Animated Film

Its Friday, and I thought wed have fun talking about something a little different. At Wordfence, one of my priorities is fostering a strong creative team and culture, and investing in creators. Emily Dalmas joined us as a full-time producer almost a year ago via her job as Associate Producer for...

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 ...

PHP Everywhere Bugs Put 30K+ WordPress Sites at Risk of RCE

Tens of thousands of WordPress sites are at risk from critical vulnerabilities in a widely used plug-in that facilitates the use of PHP code on a site. One of the bugs allows any authenticated user of any level – even subscribers and customers – to execute code that can completely take over a sit...

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...

Critical RCE Flaws in 'PHP Everywhere' Plugin Affect Thousands of WordPress Sites

Critical security vulnerabilities have been disclosed in a WordPress plugin known as PHP Everywhere that's used by more than 30,000 websites worldwide and could be abused by an attacker to execute arbitrary code on affected systems. PHP Everywhere is used to flip the switch on PHP code across...

Announcing Wordfence Care and Wordfence Response

Today Im incredibly excited to announce that we are launching two new products: Wordfence Care and Wordfence Response. Lets start with a fun animation that explains our new product suite! In the post below, Ill describe in detail the two incredible new products we are launching and why they are...

WordPress Email Template Designer – WP HTML Mail 3.0.9 Cross Site Scripting

Exploit makes it possible for unauthenticated attackers to achieve complete site takeover. 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...

WordPress Email Template Designer – WP HTML Mail 3.0.9 Cross Site Scripting Vulnerability

WordPress Email Template Designer – WP HTML Mail plugin versions 3.0.9 and below suffer from a cross site scripting vulnerability. Exploit makes it possible for unauthenticated attackers to achieve complete site takeover. On December 23, 2021 the Wordfence Threat Intelligence team initiated the...

WordPress WP HTML Mail plugin <= 3.0.9 - Unauthenticated Stored Cross-Site Scripting (XSS) vulnerability

Unauthenticated Stored Cross-Site Scripting XSS vulnerability discovered by Chloe Chamberland Wordfence in WordPress WP HTML Mail plugin versions = 3.0.9. Solution Update the WordPress WP HTML Mail plugin to the latest available version at least 3.1...