CVE-2026-33500 AVideo Vulnerable to Stored XSS via Markdown `javascript:` URI Bypasses ParsedownSafeWithLinks Sanitization

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the fix for CVE-2026-27568 GHSA-rcqw-6466-3mv7 introduced a custom ParsedownSafeWithLinks class that sanitizes raw HTML and tags in comments, but explicitly disables Parsedown's safeMode. This creates a bypass:...

Improper detection of disallowed URIs by Loofah `allowed_uri?`

Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...

GHSA-46FP-8F5P-PF2M Improper detection of disallowed URIs by Loofah `allowed_uri?`

Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: URIs when the scheme is split by HTML entity-encoded control characters such as carriage return, line feed, or tab. Details The alloweduri? method strips literal control characters before decoding HTML entities. Payloa...

GO-2026-4669 SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS in github.com/siyuan-note/siyuan/kernel

SiYuan has a SVG Sanitizer Bypass via Whitespace in javascript: URI — Unauthenticated XSS in github.com/siyuan-note/siyuan/kernel...

CVE-2026-32117: Improper Neutralization of Input During Web Page Generation

The grafanacubism-panel plugin allows use of cubism.js in Grafana. In 0.1.2 and earlier, the panel's zoom-link handler passes a dashboard-editor-supplied URL directly to window.location.assign / window.open with no scheme validation. An attacker with dashboard Editor privileges can set the link t...

CVE-2026-31809 SiYuan has a SVG Sanitizer Bypass via Whitespace in `javascript:` URI — Unauthenticated XSS

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer SanitizeSVG checks href attributes for the javascript: prefix using strings.HasPrefix. However, inserting ASCII tab , newline , or carriage return characters inside the javascript: string bypasses this prefi...

CVE-2026-31809

SiYuan before v3.5.10 is vulnerable via the SVG sanitizer (SanitizeSVG) which checks href for javascript: prefixes using strings.HasPrefix(), but allows ASCII tab, newline, or carriage return characters to bypass the check. These characters are stripped by browsers per WHATWG URL rules before par...

CVE-2026-27568: Improper Neutralization of Input During Web Page Generation

WWBN AVideo is an open source video platform. Prior to version 21.0, AVideo allows Markdown in video comments and uses Parsedown v1.7.4 without Safe Mode enabled. Markdown links are not sufficiently sanitized, allowing javascript: URIs to be rendered as clickable links. An authenticated...

PT-2026-21341

Name of the Vulnerable Software and Affected Versions AVideo versions prior to 21.0 AVideo version 18.0 Description AVideo allows Markdown in video comments and uses Parsedown v1.7.4 without Safe Mode enabled. Markdown links are not sufficiently sanitized, allowing javascript: URIs to be rendered...

Payload-XSS

Payload-XSS Daftar Isi 1. Payload Dasar 1-20payload-...

CVE-2026-24399 ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution

ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an payload containing a javascript: URI can be processed and executed in the browser context. This allow...

CVE-2026-24399 ChatterMate has Stored Cross-Site Scripting (XSS) via Chatbot Input Execution

ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an payload containing a javascript: URI can be processed and executed in the browser context. This allow...

CVE-2026-24399

ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an payload containing a javascript: URI can be processed and executed in the browser context. This allow...

CVE-2026-24399: Improper Neutralization of Input During Web Page Generation

ChatterMate is a no-code AI chatbot agent framework. In versions 1.0.8 and below, the chatbot accepts and executes malicious HTML/JavaScript payloads when supplied as chat input. Specifically, an payload containing a javascript: URI can be processed and executed in the browser context. This allow...

CVE-2021-31712

react-draft-wysiwyg aka React Draft Wysiwyg before 1.14.6 allows a javascript: URi in a Link Target of the link decorator in decorators/Link/index.js when a draft is shared across users, leading to XSS...

CVE-2025-13308

The Application Passwords plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'rejecturl' parameter in all versions up to, and including, 0.1.3. This is due to insufficient input sanitization and output escaping on user supplied URLs, which allows javascript: URI schemes ...

PT-2025-49339

The Application Passwords plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'reject url' parameter in all versions up to, and including, 0.1.3. This is due to insufficient input sanitization and output escaping on user supplied URLs, which allows javascript: URI schemes...

CVE-2025-13308: Improper Neutralization of Input During Web Page Generation

The Application Passwords plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'rejecturl' parameter in all versions up to, and including, 0.1.3. This is due to insufficient input sanitization and output escaping on user supplied URLs, which allows javascript: URI schemes ...

CVE-2025-58747

CVE-2025-58747 affects Dify up to version 1.9.1, where the MCP OAuth flow passes the remote server’s authorization_url directly to window.open without validation, enabling arbitrary JavaScript execution (XSS) when a victim connects to a malicious MCP server. Affected component: MCP OAuth in Dify....

CVE-2025-58747 Dify MCP OAuth Flow Vulnerable to XSS

Dify is an LLM application development platform. In Dify versions through 1.9.1, the MCP OAuth component is vulnerable to cross-site scripting when a victim connects to an attacker-controlled remote MCP server. The vulnerability exists in the OAuth flow implementation where the authorizationurl...