CVE-2026-73492

A flaw was found in Loofah, a library used for processing HTML and XML documents. The 'alloweduri?' function, intended to validate Uniform Resource Identifiers URIs, does not correctly identify and reject 'javascript:' or 'vbscript:' URIs when their scheme is obscured by specific HTML-encoded...

UBUNTU-CVE-2026-73492

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references...

CVE-2026-73492

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references...

EUVD-2026-57629

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references...

Ruby on Rails: URI scheme validation bypass in ActionText `to_markdown` via user-supplied `<action-text-markdown>` marker tag

The markdown converter treats every element as trusted internally-generated markup and emits its text verbatim. Contenttomarkdown only creates that tag when serializing attachments, but the visitor does not distinguish internal nodes from user-supplied ones. A rich-text body containing a literal...

CVE-2026-34229 Emlog: Stored XSS in Comment Module via URI Scheme Validation Bypass

Emlog is an open source website building system. Prior to version 2.6.8, there is a stored cross-site scripting XSS vulnerability in emlog comment module via URI scheme validation bypass. This issue has been patched in version 2.6.8...