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...

GHSA-8G2J-RHFH-HQ3R org.xwiki.contrib.markdown:syntax-markdown-commonmark12 vulnerable to XSS via Markdown content

Impact The Markdown syntax is vulnerable to XSS through HTML. In particular, using Markdown syntax, it's possible for any user to embed Javascript code that will then be executed on the browser of any other user visiting either the document or the comment that contains it. In the instance that th...

UBUNTU-CVE-2023-37463

cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been...