{"id":"CVE-2021-24163","aliases":["EUVD-2021-11077","GHSA-pxq6-8799-5v2r"],"status":"published","title":"Ninja Forms \u003c 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure","description":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01439,"percentile":0.73548,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-862"],"published":"2021-04-05T18:27:43Z","modified":"2026-06-17T03:39:30Z","products":[{"vendor":"ninjaforms","product":"ninja_forms"},{"vendor":"unknown","product":"ninja forms contact form – the drag and drop form builder for wordpress"}],"references":[{"url":"https://wpscan.com/vulnerability/55fde9fa-f6cd-4546-bee8-4acc628251c2","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.wordfence.com/blog/2021/02/one-million-sites-affected-four-severe-vulnerabilities-patched-in-ninja-forms/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24163"},{"url":"https://github.com/advisories/GHSA-pxq6-8799-5v2r"}],"sources":{"cve":[{"id":"CVE-2021-24163","title":"Ninja Forms \u003c 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure","description":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.","status":"published","published":"2021-04-05T18:27:43Z","modified":"2024-08-03T19:21:18.613Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11077","description":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.","status":"published","published":"2021-04-05T18:27:43Z","modified":"2024-08-03T19:21:18Z","updated_at":"2026-11-03T03:24:59.071017Z"}],"ghsa":[{"id":"GHSA-pxq6-8799-5v2r","title":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability...","description":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.","status":"published","published":"2022-05-24T22:28:52Z","modified":"2023-01-28T05:01:46Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-02T14:43:37.951512Z"}],"nvd":[{"id":"CVE-2021-24163","description":"The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.","status":"published","published":"2021-04-05T19:15:15.31Z","modified":"2026-06-17T03:39:30.097Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-200","CWE-862"],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}