SQL Injection Vulnerability – vBulletin 5.x

The vBulletin team just released a security patch for vBulletin 5.0.4, 5.0.5, 5.1.0, 5.1.1, and 5.1.2 to address a SQL injection vulnerability on the member list page. Every vBulletin user needs to upgrade to the latest version asap. vBulletin is a very popular forum sofware used on more than 100,000 web sites. Directly from vBulletin.com: […]

Disclosure: Insecure Nonce Generation in WPTouch

If you use the popular WPTouch plugin (5m+ downloads) on your WordPress website, you should update it immediately. During a routine audit for our WAF, we discovered a very dangerous vulnerability that could potentially allow a user with no administrative privileges, who was logged in (like a subscriber or an author), to upload PHP files […]

Introducing CFSSL – CloudFlare’s PKI toolkit

Today we’re proud to introduce CFSSL—our open source toolkit for everything TLS/SSL. CFSSL is used internally by CloudFlare for bundling TLS/SSL certificates chains, and for our internal Certificate Authority infrastructure. We use this tool for all our TLS certificates. Creating a certificate bundle is a common pain point for website operators, and doing it right […]

Simplifying the language of website security

A couple of weeks ago, the Sucuri team was at HostingCon. We rubbed elbows with the people who bring your websites to the world and spoke at length with them about the importance of website security. However, the most interesting conversation we had over the whole week was with a small business owner on vacation […]

Making code better with reviews

In the past we’ve written about how CloudFlare isn’t afraid to rip out and replace chunks of code that have proved to be hard to maintain or have simply reach end of life. For example, we wrote a brand new DNS server and replaced our old DNS infrastructure with it. Doing so was greatly helped […]

Remote File Upload Vulnerability in WordPress MailPoet Plugin (wysija-newsletters)

Marc-Alexandre Montpas, from our research team, found a serious security vulnerability in the MailPoet WordPress plugin. This bug allows an attacker to upload any file remotely to the vulnerable website (i.e., no authentication is required). This is a serious vulnerability, The MailPoet plugin (wysija-newsletters) is a very popular WordPress plugin (over 1,700,000 downloads). This vulnerability […]

TimThumb WebShot Code Execution Exploit (0-day)

If you are still using Timthumb after the serious vulnerability that was found on it last year, you have one more reason to be concerned. A new 0-day was just disclosed on TimThumb’s “Webshot” feature that allows for certain commands to be executed on the vulnerable website remotely (no authentication required). With a simple command, […]