{"id":"CVE-2020-13951","aliases":["EUVD-2022-0994","GHSA-g37q-26qx-8v2m"],"status":"published","title":"Denial of service in Apache OpenMeetings","description":"Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.68578,"percentile":0.99345,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-400"],"published":"2020-09-30T17:22:51Z","modified":"2026-10-24T10:31:04Z","exploits":[{"source":"exploitdb","id":"EDB-49094","title":"Apache OpenMeetings 5.0.0 - 'hostname' Denial of Service","type":"webapps","platform":"multiple","date":"2020-11-24","url":"https://www.exploit-db.com/exploits/49094"}],"fixes":[{"ecosystem":"Maven","package":"org.apache.openmeetings:openmeetings-parent","fixed_in":["5.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.openmeetings:openmeetings-parent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"5.1.0"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.openmeetings:openmeetings-parent","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"5.1.0"}]}],"versions":["4.0.0","4.0.1","4.0.10","4.0.11","4.0.3","4.0.4","4.0.5","4.0.6","4.0.7","4.0.9","5.0.0","5.0.0-M1","5.0.0-M2","5.0.0-M3","5.0.0-M4"]}],"products":[{"vendor":"apache","product":"openmeetings"},{"vendor":"apache software foundation","product":"apache openmeetings"}],"references":[{"url":"https://lists.apache.org/thread.html/re2aed827cd24ae73cbc320e5808020c8d12c7b687ee861b27d728bbc%40%3Cuser.openmeetings.apache.org%3E","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory","advisory","web"]},{"url":"http://packetstormsecurity.com/files/160186/Apache-OpenMeetings-5.0.0-Denial-Of-Service.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry","advisory","web"]},{"url":"https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922%40%3Cannounce.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13951","tags":["advisory"]},{"url":"https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7@%3Cannounce.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922@%3Cannounce.apache.org%3E","tags":["web"]},{"url":"https://github.com/advisories/GHSA-g37q-26qx-8v2m"}],"sources":{"cve":[{"id":"CVE-2020-13951","description":"Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to 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attack.","status":"published","published":"2020-09-30T18:15:21.257Z","modified":"2026-10-24T10:31:04.765543475Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:14.418339Z"},{"id":"GHSA-g37q-26qx-8v2m","title":"Denial of service in Apache OpenMeetings","description":"Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.","status":"published","published":"2022-02-10T20:36:45Z","modified":"2023-11-08T04:02:24.016965Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:47.119724Z"}]}}