{"url":"http://public2.vulnerablecode.io/api/packages/1025454?format=json","purl":"pkg:npm/marko@5.19.0","type":"npm","namespace":"","name":"marko","version":"5.19.0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"5.38.36","latest_non_vulnerable_version":"5.38.36","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/80712?format=json","vulnerability_id":"VCID-688y-5n4r-rqga","summary":"Marko is a declarative, HTML-based language for building web apps. Prior to marko version 5.38.36 and prior to @marko/runtime-tags 6.0.164, when dynamic text is interpolated into a <script> or <style> tag the Marko runtime failed to prevent tag breakout when the closing tag used non-lowercase casing. An attacker able to place input inside a <script> or <style> block could break out of the tag with </SCRIPT>, </Style>, etc. and inject arbitrary HTML/JavaScript, resulting in cross-site scripting. This issue has been patched in marko version 5.38.36 and @marko/runtime-tags 6.0.164.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-41591","reference_id":"","reference_type":"","scores":[{"value":"0.00012","scoring_system":"epss","scoring_elements":"0.0194","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-41591"},{"reference_url":"https://github.com/marko-js/marko","reference_id":"","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/marko-js/marko"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41591","reference_id":"","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41591"},{"reference_url":"https://github.com/advisories/GHSA-x9fj-57fh-c8wq","reference_id":"GHSA-x9fj-57fh-c8wq","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-x9fj-57fh-c8wq"},{"reference_url":"https://github.com/marko-js/marko/security/advisories/GHSA-x9fj-57fh-c8wq","reference_id":"GHSA-x9fj-57fh-c8wq","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-08T17:08:43Z/"}],"url":"https://github.com/marko-js/marko/security/advisories/GHSA-x9fj-57fh-c8wq"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/373284?format=json","purl":"pkg:npm/marko@5.38.36","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/marko@5.38.36"}],"aliases":["CVE-2026-41591","GHSA-x9fj-57fh-c8wq"],"risk_score":null,"exploitability":null,"weighted_severity":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-688y-5n4r-rqga"}],"fixing_vulnerabilities":[],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/marko@5.19.0"}