cyber security

Vulnerabilities and Exploits

Vulnerability Analysis CVE-2026-55040 Microsoft SharePoint JWT Token Authentication Bypass

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CVE-2026-55040 Microsoft SharePoint JWT Token Authentication Bypass

Introduction In recent enterprise security developments, a severe authentication bypass vulnerability designated as CVE-2026-55040 was disclosed in Microsoft SharePoint Server. Rated with a CVSS v3.1 base score of 9.1 (Critical), this flaw exposes on-premises SharePoint deployments to unauthenticated remote exploitation. Originally discovered by security researcher Stephen Fewer at Rapid7 Labs, the vulnerability lies deep within SharePoint’s identity handling and JSON Web

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Vulnerabilities and Exploits

Vulnerability Analysis: CVE-2026-72898 Metabase – Unauthenticated SQL Injection

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CVE-2026-72898 Metabase - Unauthenticated SQL Injection

Introduction In modern enterprise architectures, business intelligence (BI) platforms such as Metabase serve as central data gateways, aggregating access to production databases, data warehouses, and identity management systems. Consequently, vulnerabilities within BI platforms pose severe systemic risks to an organization’s entire digital infrastructure. In early August 2026, a critical security flaw identified as CVE-2026-72898 (GitHub Advisory ID: GHSA-vwf4-m7j8-wcjf) was publicly disclosed and documented as an active zero-day threat being

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Vulnerabilities and Exploits

Vulnerability Analysis: CVE-2026-64531 Linux Kernel Local Privilege Escalation in OVSwrap

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CVE-2026-64531 LInux Kernel Local PrIvIlege EscalatIon In OVSwrap

Introduction In modern enterprise cloud environments, multi-tenant container orchestration platforms, and heavily virtualized infrastructure, security isolation relies fundamentally on rigid Linux kernel boundaries and software-defined networking components. A newly disclosed vulnerability designated as CVE-2026-64531 (dubbed OVSwrap) poses a critical threat to system integrity and data confidentiality across enterprise Linux deployments. Discovered by security researcher Asim Manizada, OVSwrap allows unprivileged local users, low-privilege service accounts, or

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Vulnerabilities and Exploits

CVE-2026-29059: Unauthenticated Path Traversal in Windmill and Nextcloud Flow

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CVE-2026-29059 UnauthentIcated Path Traversal In WIndmIll and Nextcloud Flow

Introduction Modern enterprise automation relies heavily on unified workflow engines to connect disparate infrastructure components, manage background tasks, and streamline internal processes. Platforms such as Windmill and its integrations—including Nextcloud Flow—provide robust execution environments for scripts and automated jobs. However, because these systems process sensitive data and hold elevated permissions across networks, any inherent flaw severely expands an organization’s attack surface. When central infrastructure automation

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Vulnerabilities and Exploits

Microsoft Defender Elevation of Privilege Vulnerability: CVE-2026-50656

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MIcrosoft Defender ElevatIon of PrIvIlege VulnerabIlIty CVE-2026-50656

Introduction In modern operating systems, antivirus and protection engines form the most critical layer of system security. However, by design, these software components must operate with the highest possible system privileges (NT AUTHORITY\SYSTEM). This fundamental necessity turns security engines into a primary and highly lucrative target for cyber adversaries. The local elevation of privilege (EoP) vulnerability identified within Microsoft Defender, publicly dubbed “RoguePlanet” and tracked as CVE-2026-50656, directly

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Vulnerabilities and Exploits

Deep Dive CVE-2026-40138: Pre-Authentication Authentication Bypass in BeyondTrust Remote Access Solutions

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CVE-2026-40138 Pre-AuthentIcatIon AuthentIcatIon Bypass In BeyondTrust Remote Access SolutIons

Introduction In the modern corporate landscape, privileged access and remote control solutions form the backbone of IT administration and technical support infrastructure. However, because these systems inherently possess elevated rights over entire enterprise networks, they represent highly attractive targets for sophisticated threat actors. In July 2026, a critical security vulnerability designated as CVE-2026-40138 was publicly disclosed, impacting BeyondTrust’s flagship remote access software lines. Classified as

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Vulnerabilities and Exploits

Oracle PeopleSoft Zero-Day Vulnerability Exploitation (CVE-2026-35273)

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Oracle PeopleSoft Zero-Day Vulnerability Exploitation (CVE-2026-35273)

Introduction Enterprise Resource Planning (ERP) systems store an organization’s most sensitive financial, operational, and personal data, making them prime targets for sophisticated cyber threat actors looking to maximize their leverage. On June 10, 2026, Oracle released an urgent, out-of-band security alert addressing CVE-2026-35273—a critical remote code execution (RCE) vulnerability actively exploited as a zero-day within the Oracle PeopleSoft PeopleTools component. Attributed to the advanced persistent threat group UNC6240 (which has

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Active Directory Security

Responder Tool for Network Credential Capture in Active Directory

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Responder Tool for Network Credential Capture in Active Directory

Introduction Responder is a powerful, open-source Python-based penetration testing tool that directly targets the fundamental weaknesses present in Windows network environments. By manipulating how machines resolve hostnames when DNS lookups fail, Responder intercepts broadcast name resolution requests—specifically those using LLMNR (Link-Local Multicast Name Resolution), NBT-NS (NetBIOS Name Service), and MDNS (Multicast DNS) protocols—and impersonates legitimate network resources. This approach lets attackers seamlessly perform man-in-the-middle (MITM) attacks: when victims

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web security

Subdomain Takeover Vulnerabilities and Prevention

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Subdomain Takeover Vulnerabilities and Prevention

Introduction Subdomain takeover is a critical security vulnerability that allows attackers to gain unauthorized control over a subdomain of a legitimate domain through misconfigured or abandoned DNS records. This vulnerability exploits the gap between DNS configuration and actual resource ownership, creating an entry point for sophisticated attacks that leverage the trust associated with legitimate domain names. Unlike traditional

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