CVE-2026-30838

league/commonmark is a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a...

CVE-2026-30838 league/commonmark: DisallowedRawHtml extension bypass via whitespace in HTML tag names

league/commonmark is a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a...

CVE-2026-30838 league/commonmark: DisallowedRawHtml extension bypass via whitespace in HTML tag names

league/commonmark is a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a...

CVE-2026-30838

CVE-2026-30838 affects league/commonmark, a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting ASCII whitespace between a disallowed HTML tag name and the closing >, e.g., , enabling a cross-site scripting (XSS) vector for applications tha...

CVE-2026-30838 league/commonmark: DisallowedRawHtml extension bypass via whitespace in HTML tag names

league/commonmark is a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a...

CVE-2026-30838

league/commonmark is a PHP Markdown parser. Prior to version 2.8.1, the DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a...

CommonMark has DisallowedRawHtml extension bypass via whitespace in HTML tag names

Impact The DisallowedRawHtml extension can be bypassed by inserting a newline, tab, or other ASCII whitespace character between a disallowed HTML tag name and the closing . For example, would pass through unfiltered and be rendered as a valid HTML tag by browsers. This is a cross-site scripting X...

SUSE-SU-2026:0846-1 Security update for python-Markdown

This update for python-Markdown fixes the following issue: - CVE-2025-69534: incomplete markup declaration in raw HTML can crash applications that process untrusted Markdown bsc1259256...

PT-2026-23795

Name of the Vulnerable Software and Affected Versions league/commonmark versions prior to 2.8.1 Description The DisallowedRawHtml extension in league/commonmark can be bypassed by inserting ASCII whitespace characters between a disallowed HTML tag name and the closing ''. For example, would pass...

Gogs: Stored XSS via data URI in issue comments

Summary A Stored Cross-site Scripting XSS vulnerability exists in the comment and issue description functionality. The application's HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. Details The...

GHSA-XRCR-GMF5-2R8J Gogs: Stored XSS via data URI in issue comments

Summary A Stored Cross-site Scripting XSS vulnerability exists in the comment and issue description functionality. The application's HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. Details The...

GHSA-QXWQ-Q265-HC44 NocoDB Vulnerable to Stored Cross-site Scripting via Rich Text Field

Summary An authenticated user with Editor role can inject arbitrary HTML into Rich Text cells by bypassing the TipTap editor and sending raw HTML via the API. Details The TipTap editor sanitizes HTML client-side, but the backend stores raw HTML without server-side sanitization. The stored content...

CVE-2026-28359

CVE-2026-28359 affects NocoDB prior to 0.301.3, where an authenticated user with Editor role could inject arbitrary HTML into Rich Text cells by bypassing the TipTap editor and sending raw HTML via the API, causing stored cross-site scripting. The issue is mitigated by patching in version 0.301.3...

UBUNTU-CVE-2025-41117

Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field. Only datasources with the Jaeger HTTP API appear to be affected; Jaeger gRPC and Tempo ...

CVE-2025-41117 XSS in Grafana Explore stack trace

Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field. Only datasources with the Jaeger HTTP API appear to be affected; Jaeger gRPC and Tempo ...

CVE-2025-41117

Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field. Only datasources with the Jaeger HTTP API appear to be affected; Jaeger gRPC and Tempo ...

CVE-2025-41117 XSS in Grafana Explore stack trace

Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field. Only datasources with the Jaeger HTTP API appear to be affected; Jaeger gRPC and Tempo ...

Grafana 安全漏洞

Grafana is a set of open-source monitoring tools developed by Grafana Open Source, which provide a visual monitoring interface. This tool is primarily used for monitoring and analyzing Graphite, InfluxDB, and Prometheus. Grafana has a security vulnerability, where stack traces in the Explore Trac...

Grafana -- XSS in Grafana Explore stack trace

https://grafana.com/security/security-advisories/cve-2025-41117 reports: Stack traces in Grafana's Explore Traces view can be rendered as raw HTML, and thus inject malicious JavaScript in the browser. This would require malicious JavaScript to be entered into the stack trace field. Only datasourc...

CVE-2026-25516

NiceGUI is a Python-based UI framework. The ui.markdown component uses the markdown2 library to convert markdown content to HTML, which is then rendered via innerHTML. By default, markdown2 allows raw HTML to pass through unchanged. This means that if an application renders user-controlled conten...