{"id":"CVE-2021-20725","aliases":["EUVD-2021-8139","GHSA-62qp-vfx5-7cj5"],"status":"published","title":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1...","description":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.","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":"2026-11-12","score":0.00777,"percentile":0.56307,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-05-24T03:20:31Z","modified":"2026-06-17T03:34:19Z","products":[{"vendor":"calendar01_project","product":"calendar01"},{"vendor":"php factory","product":"[calendar01] free edition"}],"references":[{"url":"https://www.php-factory.net/calendar/01.php","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://jvn.jp/en/jp/JVN53910556/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20725"},{"url":"https://github.com/advisories/GHSA-62qp-vfx5-7cj5"}],"sources":{"cve":[{"id":"CVE-2021-20725","description":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-05-24T03:20:31Z","modified":"2024-08-03T17:53:21.797Z","updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-8139","description":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-05-24T03:20:31Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-62qp-vfx5-7cj5","title":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1...","description":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2022-05-24T19:03:08Z","modified":"2023-01-29T05:06:19Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:00.036476Z"}],"nvd":[{"id":"CVE-2021-20725","description":"Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.","status":"published","published":"2021-05-24T04:15:15.01Z","modified":"2026-06-17T03:34:19.55Z","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":"2026-11-02T14:06:53.987491Z"}]}}