{"id":"CVE-2019-19901","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-19901","generatedAt":"2026-10-27T22:23:33.191Z","title":"An attacker could potentially craft a specialized description, then have an administrator execute scripting when configuring a layout, aka XSS.","description":"An issue was discovered in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying certain block descriptions created by administrators. An attacker could potentially craft a specialized description, then have an administrator execute scripting when configuring a layout, aka XSS. This issue is mitigated by the fact that the attacker would be required to have the permission to create custom blocks, which is typically an administrative task.","published":"2019-12-19T06:15:11.000Z","lastModified":"2026-06-17T02:27:25.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["backdropcms/backdrop cms"],"epss":{"score":0.00552,"percentile":0.45869,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://backdropcms.org/security/backdrop-sa-core-2019-013","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://backdropcms.org/security/backdrop-sa-core-2019-013","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-19901","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}