{"id":"CVE-2021-24306","aliases":["EUVD-2021-11220","GHSA-8cvw-43cv-8xmh"],"status":"published","title":"Ultimate Member \u003c 2.1.20 - Authenticated Reflected Cross-Site Scripting (XSS)","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0062,"percentile":0.50048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-05-24T10:58:05Z","modified":"2026-10-24T10:30:39Z","products":[{"vendor":"ultimate member","product":"ultimate member – user profile, user registration, login \u0026 membership plugin"},{"vendor":"ultimatemember","product":"ultimate member – user profile, user registration, login \u0026 membership plugin"},{"vendor":"ultimatemember","product":"ultimate_member"}],"references":[{"url":"https://wpscan.com/vulnerability/35516555-c50c-486a-886c-df49c9e51e2c","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24306"},{"url":"https://github.com/advisories/GHSA-8cvw-43cv-8xmh"}],"sources":{"cve":[{"id":"CVE-2021-24306","title":"Ultimate Member \u003c 2.1.20 - Authenticated Reflected Cross-Site Scripting (XSS)","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","status":"published","published":"2021-05-24T10:58:05Z","modified":"2024-08-03T19:28:22.814Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11220","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","status":"published","published":"2021-05-24T10:58:05Z","modified":"2024-08-03T19:28:22Z","updated_at":"2026-11-03T03:24:58.504484Z"}],"ghsa":[{"id":"GHSA-8cvw-43cv-8xmh","title":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress...","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","status":"published","published":"2022-05-24T22:28:26Z","modified":"2023-01-30T05:05:35Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:47:18.801591Z"}],"nvd":[{"id":"CVE-2021-24306","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","status":"published","published":"2021-05-24T11:15:08.317Z","modified":"2026-06-17T03:39:48.157Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"2026-11-02T14:06:53.987491Z"}],"osv":[{"id":"CVE-2021-24306","description":"The Ultimate Member – User Profile, User Registration, Login \u0026 Membership Plugin WordPress plugin before 2.1.20 did not properly sanitise, validate or encode the query string when generating a link to edit user's own profile, leading to an authenticated reflected Cross-Site Scripting issue. Knowledge of the targeted username is required to exploit this, and attackers would then need to make the related logged in user open a malicious link.","status":"published","published":"2021-05-24T11:15:08.317Z","modified":"2026-10-24T10:30:39.265666524Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.778776Z"}]}}