{"id":"CVE-2021-39356","aliases":["EUVD-2021-25717","GHSA-9xwx-6whw-r67w"],"status":"published","title":"Content Staging \u003c= 2.0.1 Authenticated Stored Cross-Site Scripting","description":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00989,"percentile":0.62788,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-21T19:38:35Z","modified":"2026-06-17T04:03:36Z","products":[{"vendor":"content staging","product":"content staging"},{"vendor":"content_staging_project","product":"content_staging"}],"references":[{"url":"https://plugins.trac.wordpress.org/browser/content-staging/trunk/templates/settings.php","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://wordfence.com/vulnerability-advisories/#CVE-2021-39356","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/BigTiger2020/word-press/blob/main/Content%20Staging.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39356"},{"url":"https://github.com/advisories/GHSA-9xwx-6whw-r67w"}],"sources":{"cve":[{"id":"CVE-2021-39356","title":"Content Staging \u003c= 2.0.1 Authenticated Stored Cross-Site Scripting","description":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","status":"published","published":"2021-10-21T19:38:35.787Z","modified":"2025-02-14T17:54:55.274Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-25717","description":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","status":"published","published":"2021-10-21T19:38:35Z","modified":"2025-02-14T17:54:55Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:30.344132Z"}],"ghsa":[{"id":"GHSA-9xwx-6whw-r67w","title":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to...","description":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","status":"published","published":"2022-05-24T19:18:25Z","modified":"2023-01-30T05:03:10Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:46.99354Z"}],"nvd":[{"id":"CVE-2021-39356","description":"The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.","status":"published","published":"2021-10-21T20:15:08.193Z","modified":"2026-06-17T04:03:36.92Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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":"2026-11-02T14:07:00.137719Z"}]}}