{"id":"CVE-2021-39201","aliases":["BIT-wordpress-2021-39201","BIT-wordpress-multisite-2021-39201","DEBIAN-CVE-2021-39201","DSA-4985-1","EUVD-2021-25583","GHSA-wh69-25hr-h94v","UBUNTU-CVE-2021-39201"],"status":"published","title":"Authenticated cross-site scripting (XSS) in WordPress editor","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","severity":{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01494,"percentile":0.7435,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-09-09T21:35:08Z","modified":"2026-10-24T10:51:25Z","fixes":[{"ecosystem":"Bitnami","package":"wordpress","fixed_in":["5.8.0"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"wordpress-multisite","fixed_in":["5.8.0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"wordpress","fixed_in":["5.8.1+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"wordpress","fixed_in":["5.8.1+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"wordpress","fixed_in":["5.8.1+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"wordpress","fixed_in":["5.0.14+dfsg1-0+deb10u1"],"sources":["osv"]},{"ecosystem":"Debian:11","package":"wordpress","fixed_in":["5.7.3+dfsg1-0+deb11u1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"wordpress","ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0"},{"fixed":"5.8.0"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"wordpress-multisite","ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0"},{"fixed":"5.8.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.14+dfsg1-0+deb10u1"}]}],"versions":["5.0.10+dfsg1-0+deb10u1","5.0.11+dfsg1-0+deb10u1","5.0.12+dfsg1-0+deb10u1","5.0.4+dfsg1-1","5.0.4+dfsg1-1+deb10u1","5.0.4+dfsg1-1+deb10u2"]},{"source":"osv","ecosystem":"Debian:11","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.3+dfsg1-0+deb11u1"}]}],"versions":["5.7.1+dfsg1-2"]},{"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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.2+dfsg1-1","5.2.4+dfsg1-1","5.3.2+dfsg1-1","5.3.2+dfsg1-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.7.1+dfsg1-2ubuntu1","5.8.1+dfsg1-2ubuntu1","5.8.2+dfsg1-1ubuntu1","5.8.3+dfsg1-1ubuntu1","5.8.3+dfsg1-1ubuntu1.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.2+dfsg1-1ubuntu1","6.4.3+dfsg1-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.7.2+dfsg1-1.1ubuntu1","6.7.2+dfsg1-1.1ubuntu2"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"wordpress","product":"wordpress"},{"vendor":"wordpress","product":"wordpress-develop"}],"references":[{"url":"https://hackerone.com/reports/1142140","tags":["x_refsource_MISC","x_transferred","Permissions Required","web","report"]},{"url":"https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://www.debian.org/security/2021/dsa-4985","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39201","tags":["web"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-39201","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-39201","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-39201","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39201","title":"Authenticated cross-site scripting (XSS) in WordPress editor","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T21:35:08Z","modified":"2024-08-04T01:58:18.168Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25583","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T21:35:08Z","modified":"2024-08-04T01:58:18Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-03T03:24:23.719378Z"}],"nvd":[{"id":"CVE-2021-39201","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T22:15:09.433Z","modified":"2026-06-17T04:03:18.087Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"high","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":"2026-11-02T14:06:58.502206Z"}],"osv":[{"id":"CVE-2021-39201","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T22:15:09.433Z","modified":"2026-10-24T10:51:25.336112105Z","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":"2026-11-02T15:44:20.843843Z"},{"id":"DEBIAN-CVE-2021-39201","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T22:15:09.433Z","modified":"2026-10-23T18:03:32.18357982Z","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":"2026-11-02T15:45:35.521549Z"},{"id":"UBUNTU-CVE-2021-39201","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2021-09-09T22:15:00Z","modified":"2026-10-17T12:57:13.827077762Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","level":"high"},{"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":"2026-11-02T15:54:28.526929Z"},{"id":"BIT-wordpress-2021-39201","title":"Authenticated cross-site scripting (XSS) in WordPress editor","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2024-03-06T11:10:34.378Z","modified":"2026-09-10T16:01:48.452074675Z","updated_at":"2026-11-02T15:28:36.455807Z"},{"id":"BIT-wordpress-multisite-2021-39201","title":"Authenticated cross-site scripting (XSS) in WordPress editor","description":"WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)","status":"published","published":"2024-03-06T11:10:19.185Z","modified":"2026-09-10T16:01:48.437431552Z","updated_at":"2026-11-02T15:28:36.455807Z"},{"id":"DSA-4985-1","title":"wordpress - security update","status":"published","published":"2021-10-14T00:00:00Z","modified":"2026-03-09T02:09:07.081793Z","updated_at":"2026-11-02T15:46:17.19998Z"}]}}