{"id":"CVE-2021-24756","aliases":["EUVD-2021-11668","GHSA-x547-6pg3-h56r"],"status":"published","title":"WP System Log \u003c 1.0.21 - Unauthenticated Stored Cross-Site Scripting","description":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP address retrieved from login requests before outputting them in the admin dashboard, which could allow unauthenticated attacker to perform Cross-Site Scripting attacks against admins viewing the logs.","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":0.01343,"percentile":0.71737,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-12-13T10:40:47Z","modified":"2026-06-17T03:40:51Z","products":[{"vendor":"activity-log.com","product":"wp system log"},{"vendor":"unknown","product":"wp system log"},{"vendor":"wp_system_log_project","product":"wp_system_log"}],"references":[{"url":"https://wpscan.com/vulnerability/0cea0717-8f54-4f1c-b3ee-aff7dd91bf59","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24756"},{"url":"https://github.com/advisories/GHSA-x547-6pg3-h56r"}],"sources":{"cve":[{"id":"CVE-2021-24756","title":"WP System Log \u003c 1.0.21 - Unauthenticated Stored Cross-Site Scripting","description":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP address retrieved from login requests before outputting them in the admin dashboard, which could allow unauthenticated attacker to perform Cross-Site Scripting attacks against admins viewing the logs.","status":"published","published":"2021-12-13T10:40:47Z","modified":"2024-08-03T19:42:16.815Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:05.331617Z"}],"euvd":[{"id":"EUVD-2021-11668","description":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP address retrieved from login requests before outputting them in the admin dashboard, which could allow unauthenticated attacker to perform Cross-Site Scripting attacks against admins viewing the logs.","status":"published","published":"2021-12-13T10:40:47Z","modified":"2024-08-03T19:42:16Z","updated_at":"2026-11-03T03:24:55.867627Z"}],"ghsa":[{"id":"GHSA-x547-6pg3-h56r","title":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP...","description":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP address retrieved from login requests before outputting them in the admin dashboard, which could allow unauthenticated attacker to perform Cross-Site Scripting attacks against admins viewing the logs.","status":"published","published":"2021-12-14T00:01:09Z","modified":"2023-02-01T05:06:46Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:50:25.046492Z"}],"nvd":[{"id":"CVE-2021-24756","description":"The WP System Log WordPress plugin before 1.0.21 does not sanitise, validate and escape the IP address retrieved from login requests before outputting them in the admin dashboard, which could allow unauthenticated attacker to perform Cross-Site Scripting attacks against admins viewing the logs.","status":"published","published":"2021-12-13T11:15:08.323Z","modified":"2026-06-17T03:40:51.297Z","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":"2026-11-02T14:07:02.189991Z"}]}}