{"id":"CVE-2016-11020","aliases":["EUVD-2016-2011","GHSA-gffh-9h9q-xv2h"],"status":"published","title":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can...","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.","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":0.02884,"percentile":0.86949,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2020-02-24T17:04:35Z","modified":"2026-10-20T10:47:36Z","products":[{"vendor":"kunena","product":"kunena"}],"references":[{"url":"https://www.kunena.org/bugs/changelog","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://github.com/Kunena/Kunena-Forum/pull/5028","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://www.kunena.org/blog/179-kunena-5-0-4-released","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-11020"},{"url":"https://github.com/advisories/GHSA-gffh-9h9q-xv2h"}],"sources":{"cve":[{"id":"CVE-2016-11020","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.","status":"published","published":"2020-02-24T17:04:35Z","modified":"2024-08-06T03:47:33.913Z","updated_at":"2026-11-02T14:33:36.175943Z"}],"euvd":[{"id":"EUVD-2016-2011","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.","status":"published","published":"2020-02-24T17:04:35Z","modified":"2024-08-06T03:47:33Z","updated_at":"2026-11-03T02:22:22.200353Z"}],"ghsa":[{"id":"GHSA-gffh-9h9q-xv2h","title":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can...","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS.","status":"published","published":"2022-05-24T17:09:36Z","modified":"2023-01-29T05:01:33Z","updated_at":"2026-11-02T14:44:51.258198Z"}],"nvd":[{"id":"CVE-2016-11020","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.","status":"published","published":"2020-02-25T19:15:10.817Z","modified":"2026-06-17T00:40:49.37Z","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-434"],"updated_at":"2026-11-02T14:03:40.524348Z"}],"osv":[{"id":"CVE-2016-11020","description":"Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.","status":"published","published":"2020-02-25T19:15:10.817Z","modified":"2026-10-20T10:47:36.827980403Z","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":"2026-11-02T15:44:01.531338Z"}]}}