{"schema":"threatline.record/2","record":{"id":"CVE-2026-115350","aliases":["GHSA-96vr-jm8v-g22j"],"summary":"Mistune before 3.3.0 Stored XSS via Include Directive HTML Files","details":"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 block_html tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path traversal, to execute stored scripts when escape=False is set.","categories":["Unclassified"],"product":"mistune","vendor":"lepture","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115350","source_modified_at":"2026-10-22T19:13:26.891Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"mistune","vendor":"lepture","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.3.0"},{"version":"3.3.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115350","source_modified_at":"2026-10-22T19:13:26.891Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"mistune","ecosystem":null},"version":"3.3.0","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00188,"percentile":0.08001,"score_date":"2026-10-23"},"published_at":"2026-10-22T19:13:26.891Z","modified_at":"2026-10-22T19:13:26.891Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115350","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-22T19:13:26.891Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115350","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/lepture/mistune/security/advisories/GHSA-96vr-jm8v-g22j","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/mistune-before-3.3.0-stored-xss-via-include-directive-html-files","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-22T19:13:26.891Z","content_hash":"3001df4b86637690d1f775a2bd954e96ad716e29b92a0900e18446e75664057d"}}