{"id":"CVE-2021-27200","aliases":["EUVD-2021-13965","GHSA-c4g5-mpg9-gp62"],"status":"published","title":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic...","description":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic algorithm in recover.php. The code parameter is easily predicted from the time of day.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0336,"percentile":0.88876,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326","CWE-330"],"published":"2021-06-11T17:40:45Z","modified":"2026-06-17T03:44:27Z","products":[{"vendor":"wowonder","product":"wowonder"}],"references":[{"url":"https://www.wowonder.com","tags":["x_refsource_MISC","x_transferred","Product"]},{"url":"https://securityforeveryone.com/blog/wowonder-0-day-vulnerability-cve-2021-27200","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.exploit-db.com/exploits/49989","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27200"},{"url":"https://github.com/advisories/GHSA-c4g5-mpg9-gp62"}],"sources":{"cve":[{"id":"CVE-2021-27200","description":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic algorithm in recover.php. The code parameter is easily predicted from the time of day.","status":"published","published":"2021-06-11T17:40:45Z","modified":"2024-08-03T20:40:47.462Z","updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-13965","description":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic algorithm in recover.php. The code parameter is easily predicted from the time of day.","status":"published","published":"2021-06-11T17:40:45Z","modified":"2024-08-03T20:40:47Z","updated_at":"2026-11-03T03:24:49.808499Z"}],"ghsa":[{"id":"GHSA-c4g5-mpg9-gp62","title":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic...","description":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic algorithm in recover.php. The code parameter is easily predicted from the time of day.","status":"published","published":"2022-05-24T19:04:57Z","modified":"2023-01-27T05:02:58Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:42:08.614878Z"}],"nvd":[{"id":"CVE-2021-27200","description":"In WoWonder 3.0.4, remote attackers can take over any account due to the weak cryptographic algorithm in recover.php. The code parameter is easily predicted from the time of day.","status":"published","published":"2021-06-11T18:15:17.243Z","modified":"2026-06-17T03:44:27.4Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:06:54.439974Z"}]}}