html-poc

Proof of concept code for client-side vulnerabilities Basic HTML proof of concepts for issues such as: Clickjacking insecure CORS settings CSRF Tabnapping XSSI postMessage issues Most of these are pretty basic, but having them all in one place avoids writing the same things over and over again. T...

PwnFox

PwnFox PwnFox is a Firefox/Burp extension that provide usefull tools for your security audit. If you are a chrome user you can check https://github.com/nccgroup/autochrome. PwnFox Features Single click BurpProxy Containers Profiles PostMessage Logger Toolbox Security header remover Installation...

posta

Posta Posta is a tool for researching Cross-document Messaging communication. It allows you to track, explore and exploit postMessage vulnerabilities, and includes features such as replaying messages sent between windows within any attached browser. Prerequisites Google Chrome / Chromium Node.js...

ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

Summary The MCP Apps UI resource an interactive DataStore table rendered in the host's webview/iframe communicates with its parent via postMessage. Its inbound message listener performs no event.origin validation, and its outbound messages are sent with target origin ''. Any window/frame able to...

ckan-mcp-server: DataStore Table UI resource does not validate postMessage origin (in) and posts to targetOrigin "*" (out)

The MCP Apps UI resource an interactive DataStore table rendered in the host's webview/iframe communicates with its parent via postMessage. Its inbound message listener performs no event.origin validation, and its outbound messages are sent with target origin ''. Any window/frame able to reach th...

posta

Posta Posta es una herramienta para investigar la comunicación de Mensajería entre Documentos Cross-document Messaging. Permite rastrear, explorar y explotar vulnerabilidades de postMessage, e incluye funciones como la reproducción de mensajes enviados entre ventanas dentro de cualquier navegador...

TinaCMS admin preview iframe loads an attacker-controlled origin from the URL fragment

Summary The TinaCMS admin builds its preview from the // hash-router splat without checking that the value stays same-origin. A fragment with a doubled slash ///attacker.example/p becomes the protocol-relative URL //attacker.example/p, so the admin frames an external site. That same unvalidated...

advisories

Sobre mí Twitter: @justinsteven Blog: https://www.justinsteven.com/ Avisos de seguridad Listados en orden cronológico inverso. Haz clic en cualquier título para leer el aviso completo. Gartner Peer Insights Widget postMessage DOM XSS Fecha de divulgación: 2023-02-03 El Gartner Peer Insights Widge...

CVE-2026-100182

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

CVE-2026-100182 Download Monitor <= 5.2.10 - Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

EUVD-2026-91245

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

CVE-2026-100182

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) in all versions up to and including 5.2.10 . The root cause is insufficient input sanitization and output escaping involving Cross-Origin postMessage to the Admin Editor. An unauthenticated attacker can t...

CVE-2026-100182 Download Monitor <= 5.2.10 - Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

PT-2026-104117

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

CVE-2026-100182: Improper Neutralization of Input During Web Page Generation

The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inje...

CVE-2026-85081 Multiple elFinder Plugins - DOM-based XSS via postMessage Origin Bypass

The File Manager WordPress plugin before 8.0.5, FileOrganizer WordPress plugin before 1.2.1, File Manager Pro WordPress plugin before 2.1.3 do not correctly validate the origin of window messages received by the file browser they load on their admin screens, accepting any origin that is a leading...

CVE-2026-85081 Multiple elFinder Plugins - DOM-based XSS via postMessage Origin Bypass

The File Manager WordPress plugin before 8.0.5, FileOrganizer WordPress plugin before 1.2.1, File Manager Pro WordPress plugin before 2.1.3 do not correctly validate the origin of window messages received by the file browser they load on their admin screens, accepting any origin that is a leading...

CVE-2026-85682

The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wprest nonce to window.opener via postMessage with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to ste...

CVE-2026-85682 YOP Poll <= 7.0.10 - Unauthenticated Origin Validation Error to Administrator Account Takeover via '/auth/wp-login-redirect' REST Route

The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wprest nonce to window.opener via postMessage with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to ste...

CVE-2026-85682

The YOP Poll plugin for WordPress (versions up to and including 7.0.10 ) is vulnerable to an Origin Validation Error . The root cause is the plugin transmitting a wp_rest nonce to window.opener via postMessage() using a wildcard targetOrigin . This allows an unauthenticated attacker to steal a RE...