{"id":"CVE-2021-24276","aliases":["EUVD-2021-11190","GHSA-p8j5-xg8p-f3xm"],"status":"published","title":"Contact Form by Supsystic \u003c 1.7.15 - Reflected Cross-Site scripting (XSS)","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","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":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.16044,"percentile":0.96958,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2021-05-05T18:28:48Z","modified":"2026-06-17T03:39:45Z","exploits":[{"source":"exploitdb","id":"EDB-50344","title":"WordPress Plugin Contact Form 1.7.14 - Reflected Cross-Site Scripting (XSS)","type":"webapps","platform":"php","date":"2021-09-28","url":"https://www.exploit-db.com/exploits/50344"},{"source":"nuclei","id":"CVE-2021-24276","title":"WordPress Supsystic Contact Form \u003c1.7.15 - Cross-Site Scripting","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24276.yaml"}],"products":[{"vendor":"supsystic","product":"contact form by supsystic"},{"vendor":"supsystic","product":"contact_form"},{"vendor":"supsysticcom","product":"contact form by supsystic"}],"references":[{"url":"https://wpscan.com/vulnerability/1301123c-5e63-432a-ab90-3221ca532d9c","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/164308/WordPress-Contact-Form-1.7.14-Cross-Site-Scripting.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24276"},{"url":"https://github.com/advisories/GHSA-p8j5-xg8p-f3xm"}],"sources":{"cve":[{"id":"CVE-2021-24276","title":"Contact Form by Supsystic \u003c 1.7.15 - Reflected Cross-Site scripting (XSS)","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","status":"published","published":"2021-05-05T18:28:48Z","modified":"2024-08-03T19:28:23.251Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11190","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","status":"published","published":"2021-05-05T18:28:48Z","modified":"2024-08-03T19:28:23Z","updated_at":"2026-11-03T03:24:58.504484Z"}],"ghsa":[{"id":"GHSA-p8j5-xg8p-f3xm","title":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter...","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","status":"published","published":"2022-05-24T17:49:28Z","modified":"2023-01-29T05:06:35Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:03.455343Z"}],"nvd":[{"id":"CVE-2021-24276","description":"The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue","status":"published","published":"2021-05-05T19:15:08.66Z","modified":"2026-06-17T03:39:45.12Z","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","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":"2026-11-02T14:06:52.81233Z"}]}}