{"id":"CVE-2021-24241","aliases":["EUVD-2021-11155","GHSA-qrc3-2vgc-v73w"],"status":"published","title":"Advanced Custom Field Pro \u003c 5.9.1 - Reflected Cross-Site Scripting (XSS)","description":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.","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":0.01387,"percentile":0.72615,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-04-22T21:00:51Z","modified":"2026-06-17T03:39:41Z","products":[{"vendor":"advancedcustomfields","product":"advanced_custom_fields"},{"vendor":"unknown","product":"advanced custom fields pro"}],"references":[{"url":"https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.advancedcustomfields.com/blog/acf-5-9-1-release/","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24241"},{"url":"https://github.com/advisories/GHSA-qrc3-2vgc-v73w"}],"sources":{"cve":[{"id":"CVE-2021-24241","title":"Advanced Custom Field Pro \u003c 5.9.1 - Reflected Cross-Site Scripting (XSS)","description":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.","status":"published","published":"2021-04-22T21:00:51Z","modified":"2024-08-03T19:21:18.775Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11155","description":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.","status":"published","published":"2021-04-22T21:00:51Z","modified":"2024-08-03T19:21:18Z","updated_at":"2026-11-03T03:24:59.071017Z"}],"ghsa":[{"id":"GHSA-qrc3-2vgc-v73w","title":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the...","description":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.","status":"published","published":"2022-05-24T17:48:20Z","modified":"2023-01-29T05:06:27Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:01.439998Z"}],"nvd":[{"id":"CVE-2021-24241","description":"The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page.","status":"published","published":"2021-04-22T21:15:09.893Z","modified":"2026-06-17T03:39:41.44Z","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":"2026-11-02T14:06:52.03307Z"}]}}