{"id":"CVE-2019-16781","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-16781","generatedAt":"2026-10-28T05:26:45.689Z","title":"In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard.","description":"In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.","published":"2019-12-26T17:15:14.000Z","lastModified":"2026-06-17T02:22:48.000Z","status":"Modified","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["wordpress/wordpress","debian/debian linux"],"epss":{"score":0.01612,"percentile":0.75826,"date":"2026-10-27","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 (1.61%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v","tags":["Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://hackerone.com/reports/731301","tags":["Permissions Required","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://seclists.org/bugtraq/2020/Jan/8","tags":["Mailing List","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/","tags":["Release Notes","Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://wpvulndb.com/vulnerabilities/9976","tags":["Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://www.debian.org/security/2020/dsa-4599","tags":["Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://www.debian.org/security/2020/dsa-4677","tags":["Third Party Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hackerone.com/reports/731301","tags":["Permissions Required","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2020/Jan/8","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpvulndb.com/vulnerabilities/9976","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4599","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4677","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-16781","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."}