CVE-2026-115350

Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw blockhtml tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path...

CVE-2026-115350 Mistune before 3.3.0 Stored XSS via Include Directive HTML Files

Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw blockhtml tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path...

CVE-2026-115350

Versions of Mistune prior to 3.3.0 are vulnerable to a stored cross-site scripting (XSS) vulnerability within the Include directive . The root cause is that the renderer emits content from included .html, .xhtml, or .htm files as raw block_html tokens. An attacker who can plant a readable HTML fi...