VulnHub

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning about an actively exploited vulnerability in the LiteSpeed cPanel user-end plugin, identified as CVE-2026-54420. This flaw poses a significant risk to U.S. government servers, prompting CISA to give agencies just three days to secure their systems. Attackers can exploit this vulnerability to gain unauthorized access, which could lead to data breaches or other malicious activities. The urgency of the warning highlights the need for prompt action to protect sensitive information and maintain system integrity. Agencies are advised to take immediate steps to patch their systems against this threat.

Cisco has issued security updates to address a medium-severity vulnerability in its Catalyst SD-WAN Manager, previously known as SD-WAN vManage. The flaw, identified as CVE-2026-20262, has a CVSS score of 6.5 and has been reported as actively exploited in the wild. This vulnerability affects the web user interface, allowing authenticated remote attackers to create files, which could lead to further compromise of the system. Given that this software is widely used for managing SD-WAN deployments, organizations utilizing this product should prioritize applying the latest updates to mitigate potential risks. The active exploitation of this flaw emphasizes the importance of maintaining up-to-date security measures in network management solutions.

Researchers have identified a serious three-stage attack method known as the 'SearchLeak' attack, which allows attackers to steal data with just one click. This vulnerability is linked to AI prompt-injection issues that utilize hidden URLs and other variables to exploit systems. Although the attack has been patched, it raises concerns about the security of AI applications and the potential for similar vulnerabilities to emerge. Companies using AI tools should remain vigilant and ensure that they are updated to protect against these types of attacks. The incident serves as a reminder of the ongoing security challenges in the rapidly evolving field of artificial intelligence.

This week saw several cybersecurity incidents that highlight ongoing vulnerabilities in various systems. A zero-day vulnerability was discovered in Google Chrome, which could allow attackers to execute arbitrary code. Additionally, exploits affecting UniFi devices were reported, taking advantage of outdated software. Cybercriminals are also utilizing phishing kits that are increasingly easy to rent, making them more accessible to a wider range of attackers. Meanwhile, macOS systems are facing threats from new data-stealing malware, and a flaw in VPN services was identified, potentially exposing user data. These incidents remind users and organizations of the continuous need to update their software and remain vigilant against evolving cyber threats.

A significant vulnerability in Oracle's ERP software has been exploited by hackers, particularly impacting American universities. The group known as ShinyHunters took advantage of this flaw to steal large amounts of sensitive data from these institutions. This incident raises concerns about the security of educational data, as universities often hold a wealth of personal and financial information about students and staff. The exploitation of this zero-day vulnerability emphasizes the need for organizations to regularly update their software and implement strong security measures to protect against such attacks. As this situation unfolds, affected universities must respond quickly to mitigate the damage and secure their systems.

Researchers have identified a series of vulnerabilities in LangGraph, an open-source framework designed for building AI applications. Among these flaws is a critical SQL injection vulnerability that could allow attackers to execute remote code on affected systems. This is particularly concerning for developers and organizations using LangGraph for self-hosted AI projects, as it could lead to unauthorized access and control over their applications. The vulnerabilities have been patched, but the incident serves as a reminder of the risks associated with using open-source software without proper security measures. Users are advised to update to the latest version to mitigate these risks.

A threat actor has been exploiting a vulnerability in Marimo notebooks, specifically CVE-2026-39987, to gain unauthorized access. After taking control of a publicly accessible notebook, the attacker utilized a large language model (LLM) agent to carry out further actions. They extracted cloud credentials from the compromised system, which could potentially lead to additional breaches or data leaks. This incident raises concerns for organizations using Marimo products, as it demonstrates how quickly attackers can adapt and use advanced tools for post-exploitation activities. Companies must remain vigilant and ensure their systems are secured against such vulnerabilities.

Hackers are exploiting a vulnerability in FortiClient Enterprise Management Server (EMS), identified as CVE-2026-35616, which allows them to bypass authentication. This flaw is being used to deliver a credential-stealing malware known as EKZ. Organizations using FortiClient EMS are at risk, as attackers can gain unauthorized access to sensitive information through this exploit. The situation is concerning since the malware targets credentials, potentially leading to further data breaches. Companies should prioritize patching this vulnerability to protect their systems and data from compromise.

A serious vulnerability has been found in Gogs, a widely used open-source Git service that allows users to host their own repositories. This flaw, which has a CVSS score of 9.4, enables any authenticated user to execute arbitrary code, potentially giving them full control over the server. This means that individuals with valid access can exploit this weakness to run malicious commands, posing a significant risk to the integrity and security of the affected systems. Currently, there is no CVE identifier linked to this vulnerability, which may complicate tracking and response efforts. Users of Gogs should be particularly vigilant and consider implementing immediate security measures to mitigate potential exploitation.

A recently identified vulnerability in FortiClient Endpoint Management Server (EMS), tracked as CVE-2026-35616, is being actively exploited to deploy information-stealing malware, according to a report from Arctic Wolf. This flaw has a high severity rating of 9.1 and allows attackers to execute remote code without needing authentication, making it particularly dangerous. Organizations using FortiClient EMS should be on high alert as the vulnerability can be exploited through specially crafted requests. The vulnerability was patched in April, but the ongoing exploitation highlights the importance of timely updates and monitoring for suspicious activity. Companies must ensure they have applied the latest patches to protect their systems from these attacks.

A newly discovered zero-day vulnerability in the Gogs self-hosted Git service allows attackers to execute remote code on servers that are exposed to the internet. This flaw poses a significant risk to organizations using Gogs for version control, as malicious actors could potentially gain full control over affected systems. Currently, there are no patches available to fix this issue, leaving users vulnerable until a solution is released. The exploitation of this vulnerability is particularly concerning because it can lead to data breaches or further attacks within an organization's infrastructure. Users and administrators of Gogs should take immediate action to secure their installations and monitor for any unusual activity.