{"id":"CVE-2011-3621","aliases":["EUVD-2011-3580","GHSA-q3xj-rw6r-h329"],"status":"published","title":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","description":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","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":"2026-11-07","score":0.01197,"percentile":0.6828,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-01-22T17:44:17Z","modified":"2026-06-16T23:33:38Z","products":[{"vendor":"fluxbb","product":"fluxbb"}],"references":[{"url":"https://www.openwall.com/lists/oss-security/2011/10/18/8","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://fluxbb.org/forums/viewtopic.php?id=5751","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-3621"},{"url":"https://github.com/advisories/GHSA-q3xj-rw6r-h329"}],"sources":{"cve":[{"id":"CVE-2011-3621","description":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","status":"published","published":"2020-01-22T17:44:17Z","modified":"2024-08-06T23:37:48.681Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-3580","description":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","status":"published","published":"2020-01-22T17:44:17Z","modified":"2024-08-06T23:37:48Z","updated_at":"2026-11-03T01:39:50.860626Z"}],"ghsa":[{"id":"GHSA-q3xj-rw6r-h329","title":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","description":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","status":"published","published":"2022-04-22T00:24:23Z","modified":"2024-04-03T23:06:10Z","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"}],"updated_at":"2026-11-02T14:55:47.283285Z"}],"nvd":[{"id":"CVE-2011-3621","description":"A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.","status":"published","published":"2020-01-22T18:15:11.937Z","modified":"2026-06-16T23:33:38.5Z","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"}],"updated_at":"2026-11-02T14:02:12.945371Z"}]}}