Understanding CVE-2026-5538 and Its Impact on Server Security A recently discovered vulnerability, CVE-2026-5538, has been identified in QingdaoU OnlineJudge software, affecting versions up to 1.6.1. This vulnerability allows for server-side request forgery, which can be exploited remotely. System administrators and hosting providers must be vigilant to protect their infrastructures against this type of attack. Details […]

Introduction In the realm of cybersecurity, vulnerabilities pose significant risks to system administrators and hosting providers. Recently, a high-severity vulnerability, CVE-2026-5536, was identified in the FedML-AI framework. This weakness can be exploited to perform deserialization attacks remotely, potentially compromising Linux servers. Understanding CVE-2026-5536 CVE-2026-5536 impacts versions of FedML-AI up to 0.8.9. The vulnerability resides within […]

Understanding CVE-2026-5538 and Its Impact on Server Security A recently discovered vulnerability, CVE-2026-5538, has been identified in QingdaoU OnlineJudge software, affecting versions up to 1.6.1. This vulnerability allows for server-side request forgery, which can be exploited remotely. System administrators and hosting providers must be vigilant to protect their infrastructures against this type of attack. Details […]

Introduction In the realm of cybersecurity, vulnerabilities pose significant risks to system administrators and hosting providers. Recently, a high-severity vulnerability, CVE-2026-5536, was identified in the FedML-AI framework. This weakness can be exploited to perform deserialization attacks remotely, potentially compromising Linux servers. Understanding CVE-2026-5536 CVE-2026-5536 impacts versions of FedML-AI up to 0.8.9. The vulnerability resides within […]

Your server’s safety is the number one priority for us, that’s why we have created two new BitNinja WAF rules which are already part of the safe minimum ruleset. They grant protection against the following vulnerabilities: Magento Remote Execution Protection Those who are using Magento and didn't apply the patch are vulnerable to RCE (remote code […]

If someone wants to use a server resource or take control of the server in some way or wants to steal data, then he does it via remote code execution vulnerability. What is Remote Code Execution? This vulnerability triggers in so many ways, but in most cases, it is possible via the following methods. •Untreated […]

There are tons of paid/free cloud-based solutions or standalone applications available over the internet that allow the user to check a system’s security level. Depending on the need, people can choose from simple nmap through “blackbox” security assessment tools to a wide range of heavy-weight penetration testing tools. Our approach Here at BitNinja we think […]

For devops in the web hosting business, holiday season is not exactly the most wonderful time of the year. If you’ve ever sneaked out from Christmas dinner to check on your servers’ status, or been woken up by attack alerts when only Santa Claus is supposed to be awake, you know what I mean. The […]

Before I begin to explain CSRFs we need to understand some facts. First of all, we have to see how websites usually work when they have a login. Most pages use username/email and password for authentication. In today's world, it's not uncommon for newer sites to support two-step authentication. Normally we use a login once […]

In the previous blog article, we learned about SQL injection and how it works. If you read it then you will know that it belongs to the family of the most serious vulnerabilities. The next vulnerability is not going to be so serious, but it's worth taking care of. What is HTTP Parameter Pollution? The […]

A few days ago, we released a new agent version (1.23.3), which contains very important developments: We added two new SenseLog rules. The first one detects arbitrary file uploader bots, and the second one is for Joomla Spam regers. SenseLog is prepared for future remote config update. Instant blacklist action added to WAF Manager. It […]

The current world war isn’t happening in the physical world. However, cyber attacks have stepped into the foreground, and blackhat hackers can gain millions with their targeted attacks. Their main weapon in this war: malware. In this article, we’ll diversify the different types of malware so that you can better understand their behaviour. There are […]

We like attending meetups because we believe that great ideas are created when we share our experience and knowledge. That’s why we decided to organize regularly an IT security meetup in our town, Debrecen. On 24th August, we held our third meetup and we are so happy that the number of the attendees is increasing. […]

Understanding CVE-2026-5535 A recently disclosed vulnerability, CVE-2026-5535, has come into the spotlight, affecting the FedML-AI platform versions up to 0.8.9. This vulnerability allows remote attackers to conduct path traversal attacks through the FileUtils.java file of the MQTT Message Handler component. Such exploitability poses serious risks for server administrators and hosting providers, emphasizing an urgent need […]

Introduction The cybersecurity landscape is constantly evolving, making server protection crucial for system administrators and hosting providers. Recently, a significant vulnerability, identified as CVE-2026-5534, has been disclosed in the itsourcecode Online Enrollment System. This vulnerability exposes servers to SQL injection attacks, potentially compromising sensitive data. Understanding the implications of this threat and taking proactive measures […]

Understanding CVE-2026-5533 and Its Impact on Server Security The recent discovery of the CVE-2026-5533 vulnerability in the badlogic pi-mono framework highlights a serious security risk related to cross-site scripting (XSS). This flaw particularly affects version 0.58.4 of the SVG Artifact Handler, leading to potential remote exploitation. Summary of the Vulnerability The CVE-2026-5533 vulnerability exploits a […]