{"id":"CVE-2006-2247","aliases":["DEBIAN-CVE-2006-2247","DSA-1056-1","EUVD-2006-2248","GHSA-437p-pvrc-cr2c"],"status":"published","title":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a...","description":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01695,"percentile":0.77273,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2006-05-09T10:00:00Z","modified":"2026-06-16T22:24:38Z","fixes":[{"ecosystem":"Debian:3.1","package":"webcalendar","fixed_in":["0.9.45-4sarge4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:3.1","package":"webcalendar","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.45-4sarge4"}]}],"versions":["0.9.45-4","0.9.45-4sarge1","0.9.45-4sarge2","0.9.45-4sarge3"]}],"products":[{"vendor":"webcalendar","product":"webcalendar"}],"references":[{"url":"http://www.securityfocus.com/bid/17853","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.osvdb.org/25280","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.debian.org/security/2006/dsa-1056","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/26262","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://secunia.com/advisories/20108","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/433077/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://secunia.com/advisories/19974","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/433053/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-2247"},{"url":"https://github.com/advisories/GHSA-437p-pvrc-cr2c"}],"sources":{"cve":[{"id":"CVE-2006-2247","description":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.","status":"published","published":"2006-05-09T10:00:00Z","modified":"2024-08-07T17:43:28.715Z","updated_at":"2026-11-02T14:33:48.871799Z"}],"euvd":[{"id":"EUVD-2006-2248","description":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.","status":"published","published":"2006-05-09T10:00:00Z","modified":"2024-08-07T17:43:28Z","updated_at":"2026-11-03T01:16:01.8348Z"}],"ghsa":[{"id":"GHSA-437p-pvrc-cr2c","title":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a...","description":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.","status":"published","published":"2022-05-01T06:57:19Z","modified":"2023-01-31T05:01:18Z","updated_at":"2026-11-02T14:48:01.930488Z"}],"nvd":[{"id":"CVE-2006-2247","description":"WebCalendar 1.0.1 to 1.0.3 generates different error messages depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames.","status":"published","published":"2006-05-09T10:02:00Z","modified":"2026-06-16T22:24:38.27Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:02.98271Z"}],"osv":[{"id":"DSA-1056-1","title":"webcalendar - verbose error message","status":"published","published":"2006-05-15T00:00:00Z","modified":"2026-03-09T01:01:20.526289Z","updated_at":"2026-11-02T15:46:14.285228Z"}]}}