{"id":"CVE-2019-16781","aliases":["DEBIAN-CVE-2019-16781","DSA-4599-1","EUVD-2019-7299","GHSA-pg4x-64rh-3c9v","UBUNTU-CVE-2019-16781"],"status":"published","title":"Stored cross-site scripting (XSS) in WordPress block editor","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.","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01612,"percentile":0.76128,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2019-12-26T17:00:17Z","modified":"2026-10-24T10:50:35Z","fixes":[{"ecosystem":"Debian:12","package":"wordpress","fixed_in":["5.3.2+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"wordpress","fixed_in":["5.3.2+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"wordpress","fixed_in":["5.3.2+dfsg1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.2+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.2+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.2+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.4+dfsg1-1+deb10u1"}]}],"versions":["5.0.4+dfsg1-1"],"bundled":18},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3+dfsg-1","4.3.1+dfsg-1","4.4+dfsg-1","4.4.1+dfsg-1","4.4.2+dfsg-1","4.4.2+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.2+dfsg-2","4.8.3+dfsg-1","4.9.1+dfsg-1","4.9.2+dfsg-1","4.9.4+dfsg-1","4.9.5+dfsg1-1"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"wordpress","product":"wordpress"},{"vendor":"wordpress foundation","product":"wordpress"}],"references":[{"url":"https://wpvulndb.com/vulnerabilities/9976","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","report"]},{"url":"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://hackerone.com/reports/731301","tags":["x_refsource_MISC","x_transferred","Permissions Required","Third Party Advisory","report"]},{"url":"https://seclists.org/bugtraq/2020/Jan/8","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4599","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4677","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-16781","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-16781","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-16781","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-16781","title":"Stored cross-site scripting (XSS) in WordPress block editor","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.","status":"published","published":"2019-12-26T17:00:17Z","modified":"2024-08-05T01:24:48.284Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:23.189113Z"}],"euvd":[{"id":"EUVD-2019-7299","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.","status":"published","published":"2019-12-26T17:00:17Z","modified":"2024-08-05T01:24:48Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T02:40:31.903592Z"}],"nvd":[{"id":"CVE-2019-16781","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.","status":"published","published":"2019-12-26T17:15:13.613Z","modified":"2026-06-17T02:22:47.553Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:40.856496Z"}],"osv":[{"id":"CVE-2019-16781","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.","status":"published","published":"2019-12-26T17:15:13.613Z","modified":"2026-10-24T10:50:35.117126505Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-16781","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.","status":"published","published":"2019-12-26T17:15:13.613Z","modified":"2026-09-21T07:02:45.362252978Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"UBUNTU-CVE-2019-16781","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.","status":"published","published":"2019-12-26T17:15:00Z","modified":"2025-10-24T04:47:53Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:20.325378Z"},{"id":"DSA-4599-1","title":"wordpress - security update","status":"published","published":"2020-01-08T00:00:00Z","modified":"2026-03-09T02:10:46.782323Z","updated_at":"2026-11-02T15:46:17.19998Z"}]}}