Authentication Bypass
Hackers target Microsoft SharePoint RCE chain with PoC exploit
Attackers are now targeting a chain of two Microsoft SharePoint vulnerabilities that can allow them to execute arbitrary code on unpatched servers, according to threat intelligence company Defused. The first (tracked as CVE-2026-55040) is an authentication bypass flaw in the JWT token validation pipeline that attackers without privileges can exploit to perform operations as a SharePoint […]
Ubiquiti patches three max severity security vulnerabilities
Ubiquiti has released security patches for three new maximum-severity vulnerabilities that threat actors can exploit remotely without privileges. The first (tracked as CVE-2026-77537) lets unauthenticated attackers compromise unpatched devices by exploiting an improper input validation weakness in the UniFi Protect Application video surveillance management platform. Ubiquiti also addressed a CRLF injection flaw (CVE-2026-77550) that remote attackers without privileges can exploit to […]
Hackers target WordPress sites in miniOrange auth bypass attacks
Hackers are attempting to exploit two critical authentication bypass vulnerabilities in the miniOrange SAML 2.0 Single Sign On plugin for WordPress that can be used to forge SAML responses and log in as administrators. The miniOrange SAML SSO plugin turns a WordPress site into a SAML service provider, letting users log in through corporate identity […]
Citrix urges admins to patch new NetScaler flaws as soon as possible
Citrix has warned customers to immediately secure their systems against two vulnerabilities affecting NetScaler Gateway secure remote access solutions and NetScaler ADC networking appliances. The most severe of the two, tracked as CVE-2026-19490, can allow remote attackers without privileges to bypass authentication when the appliance is configured as an AAA virtual server or as a Gateway […]
Hackers exploit macOS Screen Sharing flaw to deploy Monero miner
The Netherlands’ National Cyber Security Centre (NCSC) is warning that hackers are actively exploiting a macOS authentication bypass vulnerability after public exploit code emerged. The security issue lies in macOS Screen Sharing, a built-in remote desktop feature that allows remote desktop control over a network, using the VNC protocol over TCP port 5900. Apple fixed […]
Hackers leverage new Microsoft SharePoint exploit in attacks
A proof-of-concept (PoC) exploit for a critical Microsoft SharePoint vulnerability, published by cybersecurity company Rapid7 on Tuesday, is already being used in attacks. Tracked as CVE-2026-55040, this authentication bypass security flaw in the JWT token validation pipeline can be exploited by attackers without privileges to perform operations as a SharePoint site user or administrator. Microsoft patched […]
N-able warns of N-central auth bypass flaw exploited in attacks
N-able is warning customers that hackers are exploiting an authentication bypass vulnerability (CVE-2026-18577) affecting both hosted and on-premises N-central servers. The company on Sunday released hotfix 2026.3.1.7 to address the security issue, which affects all versions of N-central before 2026.3. On August 1st, the vendor disclosed that it detected active exploitation and launched an investigation that uncovered […]
JetBrains warns of critical TeamCity remote code execution flaw
JetBrains is warning of a critical authentication bypass vulnerability affecting TeamCity On-Premises that could be exploited to achieve remote code execution. The security issue is tracked as CVE-2026-63077 and can be leveraged by an attacker with HTTPS access to a TeamCity server to bypass authentication via the agent polling protocol and execute arbitrary operating system […]
Check Point warns of SmartConsole zero-day exploited in attacks
Israeli cybersecurity firm Check Point Software has addressed an actively exploited zero-day flaw in the company’s SmartConsole graphical user interface (GUI) admin panel. Tracked as CVE-2026-16232, this authentication bypass vulnerability allows unauthenticated attackers to obtain an application login token that can be used to authenticate with administrator privileges. After gaining access to a vulnerable Security Management […]
Hackers exploit critical auth bypass in Gitea Docker image
Hackers are actively exploiting a critical vulnerability in the official Docker image for the Gitea self-hosted Git service that allows attackers to impersonate any user, including administrators. The security flaw is an authentication bypass vulnerability, tracked as CVE-2026-20896, that affects deployments using the default configuration, where reverse proxy authentication headers such as X-WEBAUTH-USER are enabled. Michael […]