The Easy WP SMTP plugin authors have released a new update, fixing a very critical 0day vulnerability. When leveraged, this vulnerability gives unauthenticated attackers the power to modify any options of an affected site — ultimately leading to a complete site compromise. The vulnerability, found only in version 1.3.9, has been seen exploited in the […]
Tag Archives: WordPress Security
Arbitrary Directory Deletion in WP-Fastest-Cache
The WP-Fastest-Cache plugin authors released a new update, version 0.8.9.1, fixing a vulnerability (CVE-2019-6726) present during its install alongside the WP-PostRatings plugin. According to seclists.org: “A successful attack allows an unauthenticated attacker to specify a path to a directory from which files and directories will be deleted recursively. The vulnerable code path extracts the path […]
Insufficient Privilege Validation in SiteGround Optimizer & Caldera Forms Pro
While investigating the SiteGround Optimizer and Caldera Forms Pro plugins we have discovered a critical privilege escalation vulnerability. It was not being abused externally and impacts over 500,000 sites. It’s urgency is defined by the associated DREAD score that looks at damage, reproducibility, exploitability, affected users, and discoverability. A key contributor to the criticality of […]
How to Add SSL & Move WordPress from HTTP to HTTPS
Moving a WordPress website from HTTP to HTTPS should be a priority for any webmaster. Recent statistics show that over 33% of website administrators across the web use WordPress and many of these websites have still not added an SSL certificate. Why is Important to Have a WordPress SSL Certificate? SSL has become increasingly important […]
How to Add SSL & Move WordPress from HTTP to HTTPS
Moving a WordPress website from HTTP to HTTPS should be a priority for any webmaster. Recent statistics show that over 33% of website administrators across the web use WordPress and many of these websites have still not added an SSL certificate. Why is Important to Have a WordPress SSL Certificate? SSL has become increasingly important […]
Fake Browser Updates Push Ransomware and Bank Malware
Recently we came across a malicious campaign injecting scripts that push fake browser updates onto site visitors. This is what a typical fake update request looks like: Users see a message box that says it’s an “Update Center” for your browser type (in my case it’s Firefox, but they also have such messages for Chrome, […]
Fake Browser Updates Push Ransomware and Bank Malware
Recently we came across a malicious campaign injecting scripts that push fake browser updates onto site visitors. This is what a typical fake update request looks like: Users see a message box that says it’s an “Update Center” for your browser type (in my case it’s Firefox, but they also have such messages for Chrome, […]
The Importance of Website Logs
As a security company, we deal with a lot of compromised websites. Unfortunately, in most cases, we have limited access to customer logs, which is one of the reasons why we don’t offer forensic analysis. Sucuri offers website monitoring, protection, and clean up, but sometimes we go that extra mile and investigate how websites become […]
The Importance of Website Logs
As a security company, we deal with a lot of compromised websites. Unfortunately, in most cases, we have limited access to customer logs, which is one of the reasons why we don’t offer forensic analysis. Sucuri offers website monitoring, protection, and clean up, but sometimes we go that extra mile and investigate how websites become […]
Spam Injector Disguised as License Key in WordPress Website
Here at Sucuri, we clean WordPress websites every day. There are various types of common malware, but when we stumble upon a different scenario, our research team likes to dig deeper and conduct a complete investigation. A license key is a place where a webmaster might not expect to find an infection, however, in this particular […]

