WebSocket Unencrypted Traffic

WebSocket is a protocol used by modern web application to allow full duplex communication between clients and servers for real-time web applications. By default, WebSocket protocol does not use any encryption when using the base ws:// URL scheme, leaving it open to man-in-the-middle attacks. No...

The vulnerability of the WebSocket module in Node.js operating systems on FortiOS and proxy servers, which allows attackers to elevate privileges to the “super-admin” level.

The vulnerability of the WebSocket module in Node.js operating systems on FortiOS and FortiProxy proxy servers relates to bypassing the authentication process by using an alternative path or channel. Exploiting this vulnerability allows a malicious actor to elevate their privileges to “super-admi...

Astra Linux – Vulnerability in Apache2

Servicing WebSocket protocol upgrades over an HTTP/2 connection may lead to a Null Pointer dereference, causing the server process to crash and degrading performance...

Azure Linux 3.0 Security Update: httpd (CVE-2024-36387)

The version of httpd installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-36387 advisory. - Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference,...

ABB Cylon FLXeon 9.3.4 wsConnect.js WebSocket Command Spawning Exploit

ABB Cylon FLXeon version 9.3.4 is vulnerable to an unauthenticated WebSocket implementation that allows an attacker to execute the tcpdump command. This command captures network traffic and filters it on serial ports 4855 and 4851, which are relevant to the device's services. The vulnerability ca...

CVE-2025-24964

Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking CSWSH attacks. When api option is enabled Vitest UI enables it, Vitest starts a...

ABB Cylon FLXeon 9.3.4 (wsConnect.js) WebSocket Command Spawning PoC

Summary BACnet® Smart Building Controllers. ABB's BACnet portfolio features a series of BACnet® IP and BACnet MS/TP field controllers for ASPECT® and INTEGRA™ building management solutions. ABB BACnet controllers are designed for intelligent control of HVAC equipment such as central plant, boiler...

ABB Cylon FLXeon 9.3.4 wsConnect.js WebSocket Command Spawning

ABB Cylon FLXeon version 9.3.4 is vulnerable to an unauthenticated WebSocket implementation that allows an attacker to execute the tcpdump command. This command captures network traffic and filters it on serial ports 4855 and 4851, which are relevant to the device's services. The vulnerability ca...

CVE-2022-39386

@fastify/websocket provides WebSocket support for Fastify. Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. This has been patched in version 7.1....

CVE-2020-16100

It is possible for an unauthenticated remote DCOM websocket connection to crash the Command Centre service's DCOM websocket thread due to improper shutdown of closed websocket connections, preventing it from accepting future DCOM websocket Configuration Client connections. Affected versions are...

CVE-2020-15133

In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes. The Faye::WebSocket::Client class uses the EM::Connectionstarttls method in EventMachine to implement the TLS handshake whenever a wss: URL is used for the connection. This method does not...

CVE-2020-15134

Faye before version 1.4.0, there is a lack of certification validation in TLS handshakes. Faye uses em-http-request and faye-websocket in the Ruby version of its client. Those libraries both use the EM::Connectionstarttls method in EventMachine to implement the TLS handshake whenever a wss: URL i...

CVE-2024-23657

Nuxt is a free and open-source framework to create full-stack web applications and websites with Vue.js. Nuxt Devtools is missing authentication on the getTextAssetContent RPC function which is vulnerable to path traversal. Combined with a lack of Origin checks on the WebSocket handler, an attack...

CVE-2024-5820

An unprotected WebSocket connection in the latest version of stitionai/devika commit ecee79f allows a malicious website to connect to the backend and issue commands on behalf of the user. The backend serves all listeners on the given socket, enabling any such malicious website to intercept all...

Remote Code Execution (RCE)

Vitest is vulnerable to Remote Code Execution RCE. The vulnerability is due to the WebSocket server not validating the Origin header and lacking an authorization mechanism, allowing an attacker to inject and execute arbitrary code via the saveTestFile and rerun APIs...

The vulnerability lies in the implementation of the WebSocket protocol used by the software testing tool Vitest, which allows a hacker to execute arbitrary code.

The vulnerability of the WebSocket protocol implementation in the software testing tool Vitest is related to the lack of authentication for the communication source. Exploiting this vulnerability allows a malicious actor to execute arbitrary code by sending a specially crafted file...

CVE-2025-24964

Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking CSWSH attacks. When api option is enabled Vitest UI enables it, Vitest starts a...

CVE-2025-24964 Remote Code Execution when accessing a malicious website while Vitest API server is listening

Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking CSWSH attacks. When api option is enabled Vitest UI enables it, Vitest starts a...

CVE-2025-24964 Remote Code Execution when accessing a malicious website while Vitest API server is listening

Vitest is a testing framework powered by Vite. Affected versions are subject to arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking CSWSH attacks. When api option is enabled Vitest UI enables it, Vitest starts a...

CVE-2025-24964

Vitest CVE-2025-24964 is a remotely exploitable CSWSH (Cross-site WebSocket hijacking) vulnerability in the Vitest API server when api is enabled. The WebSocket server did not validate Origin or enforce authorization, exposing saveTestFile (edits test files) and rerun (executes tests) APIs. An at...