{"id":"CVE-2021-38320","aliases":["EUVD-2021-24773","GHSA-cfgm-gh5v-x98w"],"status":"published","title":"simpleSAMLphp Authentication \u003c= 0.7.0 Reflected Cross-Site Scripting","description":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.","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":"2026-11-12","score":0.0097,"percentile":0.6235,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-09-09T18:10:03Z","modified":"2026-06-17T04:01:51Z","products":[{"vendor":"simplesamlphp authentication","product":"simplesamlphp authentication"},{"vendor":"simplesamlphp_authentication_project","product":"simplesamlphp_authentication"}],"references":[{"url":"https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38320","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/browser/simplesamlphp-authentication/tags/0.7.0/simplesamlphp-authentication.php#L307","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38320"},{"url":"https://github.com/advisories/GHSA-cfgm-gh5v-x98w"}],"sources":{"cve":[{"id":"CVE-2021-38320","title":"simpleSAMLphp Authentication \u003c= 0.7.0 Reflected Cross-Site Scripting","description":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.","status":"published","published":"2021-09-09T18:10:03.585Z","modified":"2025-05-05T16:40:12.177Z","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":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-24773","description":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.","status":"published","published":"2021-09-09T18:10:03Z","modified":"2025-05-05T16:40:12Z","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":"2026-11-02T20:32:56.053822Z"}],"ghsa":[{"id":"GHSA-cfgm-gh5v-x98w","title":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting...","description":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.","status":"published","published":"2022-05-24T19:13:55Z","modified":"2023-01-30T05:02:01Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:32.670383Z"}],"nvd":[{"id":"CVE-2021-38320","description":"The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.","status":"published","published":"2021-09-09T19:15:13.503Z","modified":"2026-06-17T04:01:51.607Z","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"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}