{"id":"CVE-2021-4363","aliases":["EUVD-2021-34190","GHSA-f37x-r3cc-2x57"],"status":"published","title":"WP Quick FrontEnd Editor \u003c= 5.5 - Reflected Cross-Site Scripting","description":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00744,"percentile":0.55204,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2023-06-07T01:51:27Z","modified":"2026-06-17T04:19:34Z","products":[{"vendor":"labibahmed42","product":"wp quick frontend editor – wordpress plugin"},{"vendor":"webdevocean","product":"wp_quick_frontend_editor"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/7ce8ae7d-c2a5-4da3-8bdd-20dfdb5ce700?source=cve","tags":["x_transferred","Third Party Advisory"]},{"url":"https://wordpress.org/plugins/wp-quick-front-end-editor/#developers","tags":["x_transferred","Product"]},{"url":"https://blog.nintechnet.com/multiple-vulnerabilities-in-wordpress-wp-quick-frontend-editor-plugin-unpatched/","tags":["x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4363"},{"url":"https://blog.nintechnet.com/multiple-vulnerabilities-in-wordpress-wp-quick-frontend-editor-plugin-unpatched"},{"url":"https://github.com/advisories/GHSA-f37x-r3cc-2x57"}],"sources":{"cve":[{"id":"CVE-2021-4363","title":"WP Quick FrontEnd Editor \u003c= 5.5 - Reflected Cross-Site Scripting","description":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.","status":"published","published":"2023-06-07T01:51:27.707Z","modified":"2026-04-08T17:02:47.955Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34190","description":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.","status":"published","published":"2023-06-07T01:51:27Z","modified":"2026-04-08T17:02:47Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:52.430714Z"}],"ghsa":[{"id":"GHSA-f37x-r3cc-2x57","title":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting...","description":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.","status":"published","published":"2023-06-07T03:30:22Z","modified":"2024-04-04T04:38:26Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:56:25.511354Z"}],"nvd":[{"id":"CVE-2021-4363","description":"The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.","status":"published","published":"2023-06-07T02:15:14.483Z","modified":"2026-06-17T04:19:34.883Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}