{"id":"CVE-2019-12743","aliases":["EUVD-2019-4331","GHSA-r8ch-45q6-53xj"],"status":"published","title":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts...","description":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01504,"percentile":0.74525,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-203"],"published":"2019-07-29T15:23:27Z","modified":"2026-06-17T02:15:21Z","products":[{"vendor":"humhub","product":"social_network_kit"}],"references":[{"url":"https://humhub.org/en/news","tags":["x_refsource_MISC","x_transferred","Product","Release Notes"]},{"url":"https://github.com/chanpu9/CVE/blob/master/2019-12743","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-12743"},{"url":"https://github.com/advisories/GHSA-r8ch-45q6-53xj"}],"sources":{"cve":[{"id":"CVE-2019-12743","description":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.","status":"published","published":"2019-07-29T15:23:27Z","modified":"2024-08-04T23:32:54.792Z","updated_at":"2026-11-02T14:20:23.697579Z"}],"euvd":[{"id":"EUVD-2019-4331","description":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.","status":"published","published":"2019-07-29T15:23:27Z","modified":"2024-08-04T23:32:54Z","updated_at":"2026-11-03T02:40:45.434408Z"}],"ghsa":[{"id":"GHSA-r8ch-45q6-53xj","title":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts...","description":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.","status":"published","published":"2022-05-24T16:51:38Z","modified":"2024-04-04T01:25:16Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-203"],"updated_at":"2026-11-02T14:55:58.413912Z"}],"nvd":[{"id":"CVE-2019-12743","description":"HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.","status":"published","published":"2019-07-29T16:15:12.567Z","modified":"2026-06-17T02:15:21.47Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:05:21.892729Z"}]}}